72481520

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{521}}^1$

素因数の和:618

約数の個数: 80

約数和(自身を含む): 177095808

約数和(自身を除く): 104614288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 47, 74, 80, 94, 148, 185, 188, 235, 296, 370, 376, 470, 521, 592, 740, 752, 940, 1042, 1480, 1739, 1880, 2084, 2605, 2960, 3478, 3760, 4168, 5210, 6956, 8336, 8695, 10420, 13912, 17390, 19277, 20840, 24487, 27824, 34780, 38554, 41680, 48974, 69560, 77108, 96385, 97948, 122435, 139120, 154216, 192770, 195896, 244870, 308432, 385540, 391792, 489740, 771080, 906019, 979480, 1542160, 1812038, 1958960, 3624076, 4530095, 7248152, 9060190, 14496304, 18120380, 36240760, 72481520]

約数ペア:

[(1, 72481520), (2, 36240760), (4, 18120380), (5, 14496304), (8, 9060190), (10, 7248152), (16, 4530095), (20, 3624076), (37, 1958960), (40, 1812038), (47, 1542160), (74, 979480), (80, 906019), (94, 771080), (148, 489740), (185, 391792), (188, 385540), (235, 308432), (296, 244870), (370, 195896), (376, 192770), (470, 154216), (521, 139120), (592, 122435), (740, 97948), (752, 96385), (940, 77108), (1042, 69560), (1480, 48974), (1739, 41680), (1880, 38554), (2084, 34780), (2605, 27824), (2960, 24487), (3478, 20840), (3760, 19277), (4168, 17390), (5210, 13912), (6956, 10420), (8336, 8695)]