756480520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1\times {\mathrm{797}}^1$

素因数の和:1258

約数の個数: 64

約数和(自身を含む): 1736607600

約数和(自身を除く): 980127080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 389, 488, 610, 778, 797, 1220, 1556, 1594, 1945, 2440, 3112, 3188, 3890, 3985, 6376, 7780, 7970, 15560, 15940, 23729, 31880, 47458, 48617, 94916, 97234, 118645, 189832, 194468, 237290, 243085, 310033, 388936, 474580, 486170, 620066, 949160, 972340, 1240132, 1550165, 1944680, 2480264, 3100330, 6200660, 12401320, 18912013, 37824026, 75648052, 94560065, 151296104, 189120130, 378240260, 756480520]

約数ペア:

[(1, 756480520), (2, 378240260), (4, 189120130), (5, 151296104), (8, 94560065), (10, 75648052), (20, 37824026), (40, 18912013), (61, 12401320), (122, 6200660), (244, 3100330), (305, 2480264), (389, 1944680), (488, 1550165), (610, 1240132), (778, 972340), (797, 949160), (1220, 620066), (1556, 486170), (1594, 474580), (1945, 388936), (2440, 310033), (3112, 243085), (3188, 237290), (3890, 194468), (3985, 189832), (6376, 118645), (7780, 97234), (7970, 94916), (15560, 48617), (15940, 47458), (23729, 31880)]