64994440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{643}}^1$

素因数の和:699

約数の個数: 96

約数和(自身を含む): 176662080

約数和(自身を除く): 111667640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 361, 380, 532, 643, 665, 722, 760, 1064, 1286, 1330, 1444, 1805, 2527, 2572, 2660, 2888, 3215, 3610, 4501, 5054, 5144, 5320, 6430, 7220, 9002, 10108, 12217, 12635, 12860, 14440, 18004, 20216, 22505, 24434, 25270, 25720, 36008, 45010, 48868, 50540, 61085, 85519, 90020, 97736, 101080, 122170, 171038, 180040, 232123, 244340, 342076, 427595, 464246, 488680, 684152, 855190, 928492, 1160615, 1624861, 1710380, 1856984, 2321230, 3249722, 3420760, 4642460, 6499444, 8124305, 9284920, 12998888, 16248610, 32497220, 64994440]

約数ペア:

[(1, 64994440), (2, 32497220), (4, 16248610), (5, 12998888), (7, 9284920), (8, 8124305), (10, 6499444), (14, 4642460), (19, 3420760), (20, 3249722), (28, 2321230), (35, 1856984), (38, 1710380), (40, 1624861), (56, 1160615), (70, 928492), (76, 855190), (95, 684152), (133, 488680), (140, 464246), (152, 427595), (190, 342076), (266, 244340), (280, 232123), (361, 180040), (380, 171038), (532, 122170), (643, 101080), (665, 97736), (722, 90020), (760, 85519), (1064, 61085), (1286, 50540), (1330, 48868), (1444, 45010), (1805, 36008), (2527, 25720), (2572, 25270), (2660, 24434), (2888, 22505), (3215, 20216), (3610, 18004), (4501, 14440), (5054, 12860), (5144, 12635), (5320, 12217), (6430, 10108), (7220, 9002)]