254696520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:720

約数の個数: 192

約数和(自身を含む): 872251200

約数和(自身を除く): 617554680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 95, 104, 114, 120, 130, 152, 156, 169, 190, 195, 228, 247, 260, 285, 312, 338, 380, 390, 456, 494, 507, 520, 570, 661, 676, 741, 760, 780, 845, 988, 1014, 1140, 1235, 1322, 1352, 1482, 1560, 1690, 1976, 1983, 2028, 2280, 2470, 2535, 2644, 2964, 3211, 3305, 3380, 3705, 3966, 4056, 4940, 5070, 5288, 5928, 6422, 6610, 6760, 7410, 7932, 8593, 9633, 9880, 9915, 10140, 12559, 12844, 13220, 14820, 15864, 16055, 17186, 19266, 19830, 20280, 25118, 25688, 25779, 26440, 29640, 32110, 34372, 37677, 38532, 39660, 42965, 48165, 50236, 51558, 62795, 64220, 68744, 75354, 77064, 79320, 85930, 96330, 100472, 103116, 111709, 125590, 128440, 128895, 150708, 163267, 171860, 188385, 192660, 206232, 223418, 251180, 257790, 301416, 326534, 335127, 343720, 376770, 385320, 446836, 489801, 502360, 515580, 558545, 653068, 670254, 753540, 816335, 893672, 979602, 1031160, 1117090, 1306136, 1340508, 1507080, 1632670, 1675635, 1959204, 2122471, 2234180, 2449005, 2681016, 3265340, 3351270, 3918408, 4244942, 4468360, 4898010, 6367413, 6530680, 6702540, 8489884, 9796020, 10612355, 12734826, 13405080, 16979768, 19592040, 21224710, 25469652, 31837065, 42449420, 50939304, 63674130, 84898840, 127348260, 254696520]

約数ペア:

[(1, 254696520), (2, 127348260), (3, 84898840), (4, 63674130), (5, 50939304), (6, 42449420), (8, 31837065), (10, 25469652), (12, 21224710), (13, 19592040), (15, 16979768), (19, 13405080), (20, 12734826), (24, 10612355), (26, 9796020), (30, 8489884), (38, 6702540), (39, 6530680), (40, 6367413), (52, 4898010), (57, 4468360), (60, 4244942), (65, 3918408), (76, 3351270), (78, 3265340), (95, 2681016), (104, 2449005), (114, 2234180), (120, 2122471), (130, 1959204), (152, 1675635), (156, 1632670), (169, 1507080), (190, 1340508), (195, 1306136), (228, 1117090), (247, 1031160), (260, 979602), (285, 893672), (312, 816335), (338, 753540), (380, 670254), (390, 653068), (456, 558545), (494, 515580), (507, 502360), (520, 489801), (570, 446836), (661, 385320), (676, 376770), (741, 343720), (760, 335127), (780, 326534), (845, 301416), (988, 257790), (1014, 251180), (1140, 223418), (1235, 206232), (1322, 192660), (1352, 188385), (1482, 171860), (1560, 163267), (1690, 150708), (1976, 128895), (1983, 128440), (2028, 125590), (2280, 111709), (2470, 103116), (2535, 100472), (2644, 96330), (2964, 85930), (3211, 79320), (3305, 77064), (3380, 75354), (3705, 68744), (3966, 64220), (4056, 62795), (4940, 51558), (5070, 50236), (5288, 48165), (5928, 42965), (6422, 39660), (6610, 38532), (6760, 37677), (7410, 34372), (7932, 32110), (8593, 29640), (9633, 26440), (9880, 25779), (9915, 25688), (10140, 25118), (12559, 20280), (12844, 19830), (13220, 19266), (14820, 17186), (15864, 16055)]