645253528

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1\times {\mathrm{367}}^1$

素因数の和:704

約数の個数: 64

約数和(自身を含む): 1311552000

約数和(自身を除く): 666298472

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 172, 269, 344, 367, 538, 734, 817, 1076, 1468, 1634, 2152, 2936, 3268, 5111, 6536, 6973, 10222, 11567, 13946, 15781, 20444, 23134, 27892, 31562, 40888, 46268, 55784, 63124, 92536, 98723, 126248, 197446, 219773, 299839, 394892, 439546, 599678, 789784, 879092, 1199356, 1758184, 1875737, 2398712, 3751474, 4245089, 7502948, 8490178, 15005896, 16980356, 33960712, 80656691, 161313382, 322626764, 645253528]

約数ペア:

[(1, 645253528), (2, 322626764), (4, 161313382), (8, 80656691), (19, 33960712), (38, 16980356), (43, 15005896), (76, 8490178), (86, 7502948), (152, 4245089), (172, 3751474), (269, 2398712), (344, 1875737), (367, 1758184), (538, 1199356), (734, 879092), (817, 789784), (1076, 599678), (1468, 439546), (1634, 394892), (2152, 299839), (2936, 219773), (3268, 197446), (5111, 126248), (6536, 98723), (6973, 92536), (10222, 63124), (11567, 55784), (13946, 46268), (15781, 40888), (20444, 31562), (23134, 27892)]