2578587440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:740

約数の個数: 240

約数和(自身を含む): 7336697088

約数和(自身を除く): 4758109648

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 80, 88, 104, 110, 121, 124, 130, 143, 155, 176, 208, 220, 242, 248, 260, 286, 310, 341, 403, 440, 484, 496, 520, 572, 605, 620, 661, 682, 715, 806, 880, 968, 1040, 1144, 1210, 1240, 1322, 1364, 1430, 1573, 1612, 1705, 1936, 2015, 2288, 2420, 2480, 2644, 2728, 2860, 3146, 3224, 3305, 3410, 3751, 4030, 4433, 4840, 5288, 5456, 5720, 6292, 6448, 6610, 6820, 7271, 7502, 7865, 8060, 8593, 8866, 9680, 10576, 11440, 12584, 13220, 13640, 14542, 15004, 15730, 16120, 17186, 17732, 18755, 20491, 22165, 25168, 26440, 27280, 29084, 30008, 31460, 32240, 34372, 35464, 36355, 37510, 40982, 42965, 44330, 48763, 52880, 58168, 60016, 62920, 68744, 70928, 72710, 75020, 79981, 81964, 85930, 88660, 94523, 97526, 102455, 116336, 125840, 137488, 145420, 150040, 159962, 163928, 171860, 177320, 189046, 195052, 204910, 225401, 243815, 266383, 290840, 300080, 319924, 327856, 343720, 354640, 378092, 390104, 399905, 409820, 450802, 472615, 487630, 532766, 581680, 639848, 687440, 756184, 780208, 799810, 819640, 901604, 945230, 975260, 1039753, 1065532, 1127005, 1279696, 1331915, 1512368, 1599620, 1639280, 1803208, 1890460, 1950520, 2079506, 2131064, 2254010, 2479411, 2663830, 2930213, 3199240, 3606416, 3780920, 3901040, 4159012, 4262128, 4508020, 4958822, 5198765, 5327660, 5860426, 6398480, 7561840, 8318024, 9016040, 9917644, 10397530, 10655320, 11720852, 12397055, 14651065, 16636048, 18032080, 19835288, 20795060, 21310640, 23441704, 24794110, 29302130, 32232343, 39670576, 41590120, 46883408, 49588220, 58604260, 64464686, 83180240, 99176440, 117208520, 128929372, 161161715, 198352880, 234417040, 257858744, 322323430, 515717488, 644646860, 1289293720, 2578587440]

約数ペア:

[(1, 2578587440), (2, 1289293720), (4, 644646860), (5, 515717488), (8, 322323430), (10, 257858744), (11, 234417040), (13, 198352880), (16, 161161715), (20, 128929372), (22, 117208520), (26, 99176440), (31, 83180240), (40, 64464686), (44, 58604260), (52, 49588220), (55, 46883408), (62, 41590120), (65, 39670576), (80, 32232343), (88, 29302130), (104, 24794110), (110, 23441704), (121, 21310640), (124, 20795060), (130, 19835288), (143, 18032080), (155, 16636048), (176, 14651065), (208, 12397055), (220, 11720852), (242, 10655320), (248, 10397530), (260, 9917644), (286, 9016040), (310, 8318024), (341, 7561840), (403, 6398480), (440, 5860426), (484, 5327660), (496, 5198765), (520, 4958822), (572, 4508020), (605, 4262128), (620, 4159012), (661, 3901040), (682, 3780920), (715, 3606416), (806, 3199240), (880, 2930213), (968, 2663830), (1040, 2479411), (1144, 2254010), (1210, 2131064), (1240, 2079506), (1322, 1950520), (1364, 1890460), (1430, 1803208), (1573, 1639280), (1612, 1599620), (1705, 1512368), (1936, 1331915), (2015, 1279696), (2288, 1127005), (2420, 1065532), (2480, 1039753), (2644, 975260), (2728, 945230), (2860, 901604), (3146, 819640), (3224, 799810), (3305, 780208), (3410, 756184), (3751, 687440), (4030, 639848), (4433, 581680), (4840, 532766), (5288, 487630), (5456, 472615), (5720, 450802), (6292, 409820), (6448, 399905), (6610, 390104), (6820, 378092), (7271, 354640), (7502, 343720), (7865, 327856), (8060, 319924), (8593, 300080), (8866, 290840), (9680, 266383), (10576, 243815), (11440, 225401), (12584, 204910), (13220, 195052), (13640, 189046), (14542, 177320), (15004, 171860), (15730, 163928), (16120, 159962), (17186, 150040), (17732, 145420), (18755, 137488), (20491, 125840), (22165, 116336), (25168, 102455), (26440, 97526), (27280, 94523), (29084, 88660), (30008, 85930), (31460, 81964), (32240, 79981), (34372, 75020), (35464, 72710), (36355, 70928), (37510, 68744), (40982, 62920), (42965, 60016), (44330, 58168), (48763, 52880)]