86621440

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 223695360

約数和(自身を除く): 137073920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 59, 62, 64, 74, 80, 118, 124, 128, 148, 155, 160, 185, 236, 248, 256, 295, 296, 310, 320, 370, 472, 496, 590, 592, 620, 640, 740, 944, 992, 1147, 1180, 1184, 1240, 1280, 1480, 1829, 1888, 1984, 2183, 2294, 2360, 2368, 2480, 2960, 3658, 3776, 3968, 4366, 4588, 4720, 4736, 4960, 5735, 5920, 7316, 7552, 7936, 8732, 9145, 9176, 9440, 9472, 9920, 10915, 11470, 11840, 14632, 15104, 17464, 18290, 18352, 18880, 19840, 21830, 22940, 23680, 29264, 34928, 36580, 36704, 37760, 39680, 43660, 45880, 47360, 58528, 67673, 69856, 73160, 73408, 75520, 87320, 91760, 117056, 135346, 139712, 146320, 146816, 174640, 183520, 234112, 270692, 279424, 292640, 293632, 338365, 349280, 367040, 468224, 541384, 558848, 585280, 676730, 698560, 734080, 1082768, 1170560, 1353460, 1397120, 1468160, 2165536, 2341120, 2706920, 2794240, 4331072, 5413840, 8662144, 10827680, 17324288, 21655360, 43310720, 86621440]

約数ペア:

[(1, 86621440), (2, 43310720), (4, 21655360), (5, 17324288), (8, 10827680), (10, 8662144), (16, 5413840), (20, 4331072), (31, 2794240), (32, 2706920), (37, 2341120), (40, 2165536), (59, 1468160), (62, 1397120), (64, 1353460), (74, 1170560), (80, 1082768), (118, 734080), (124, 698560), (128, 676730), (148, 585280), (155, 558848), (160, 541384), (185, 468224), (236, 367040), (248, 349280), (256, 338365), (295, 293632), (296, 292640), (310, 279424), (320, 270692), (370, 234112), (472, 183520), (496, 174640), (590, 146816), (592, 146320), (620, 139712), (640, 135346), (740, 117056), (944, 91760), (992, 87320), (1147, 75520), (1180, 73408), (1184, 73160), (1240, 69856), (1280, 67673), (1480, 58528), (1829, 47360), (1888, 45880), (1984, 43660), (2183, 39680), (2294, 37760), (2360, 36704), (2368, 36580), (2480, 34928), (2960, 29264), (3658, 23680), (3776, 22940), (3968, 21830), (4366, 19840), (4588, 18880), (4720, 18352), (4736, 18290), (4960, 17464), (5735, 15104), (5920, 14632), (7316, 11840), (7552, 11470), (7936, 10915), (8732, 9920), (9145, 9472), (9176, 9440)]