1256576320

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{643}}^1$

素因数の和:888

約数の個数: 112

約数和(自身を含む): 3109252608

約数和(自身を除く): 1852676288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 197, 248, 310, 320, 394, 496, 620, 643, 788, 985, 992, 1240, 1286, 1576, 1970, 1984, 2480, 2572, 3152, 3215, 3940, 4960, 5144, 6107, 6304, 6430, 7880, 9920, 10288, 12214, 12608, 12860, 15760, 19933, 20576, 24428, 25720, 30535, 31520, 39866, 41152, 48856, 51440, 61070, 63040, 79732, 97712, 99665, 102880, 122140, 126671, 159464, 195424, 199330, 205760, 244280, 253342, 318928, 390848, 398660, 488560, 506684, 633355, 637856, 797320, 977120, 1013368, 1266710, 1275712, 1594640, 1954240, 2026736, 2533420, 3189280, 3926801, 4053472, 5066840, 6378560, 7853602, 8106944, 10133680, 15707204, 19634005, 20267360, 31414408, 39268010, 40534720, 62828816, 78536020, 125657632, 157072040, 251315264, 314144080, 628288160, 1256576320]

約数ペア:

[(1, 1256576320), (2, 628288160), (4, 314144080), (5, 251315264), (8, 157072040), (10, 125657632), (16, 78536020), (20, 62828816), (31, 40534720), (32, 39268010), (40, 31414408), (62, 20267360), (64, 19634005), (80, 15707204), (124, 10133680), (155, 8106944), (160, 7853602), (197, 6378560), (248, 5066840), (310, 4053472), (320, 3926801), (394, 3189280), (496, 2533420), (620, 2026736), (643, 1954240), (788, 1594640), (985, 1275712), (992, 1266710), (1240, 1013368), (1286, 977120), (1576, 797320), (1970, 637856), (1984, 633355), (2480, 506684), (2572, 488560), (3152, 398660), (3215, 390848), (3940, 318928), (4960, 253342), (5144, 244280), (6107, 205760), (6304, 199330), (6430, 195424), (7880, 159464), (9920, 126671), (10288, 122140), (12214, 102880), (12608, 99665), (12860, 97712), (15760, 79732), (19933, 63040), (20576, 61070), (24428, 51440), (25720, 48856), (30535, 41152), (31520, 39866)]