161446420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{379}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 364845600

約数和(自身を除く): 203399180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 76, 95, 118, 190, 236, 295, 361, 379, 380, 590, 722, 758, 1121, 1180, 1444, 1516, 1805, 1895, 2242, 3610, 3790, 4484, 5605, 7201, 7220, 7580, 11210, 14402, 21299, 22361, 22420, 28804, 36005, 42598, 44722, 72010, 85196, 89444, 106495, 111805, 136819, 144020, 212990, 223610, 273638, 424859, 425980, 447220, 547276, 684095, 849718, 1368190, 1699436, 2124295, 2736380, 4248590, 8072321, 8497180, 16144642, 32289284, 40361605, 80723210, 161446420]

約数ペア:

[(1, 161446420), (2, 80723210), (4, 40361605), (5, 32289284), (10, 16144642), (19, 8497180), (20, 8072321), (38, 4248590), (59, 2736380), (76, 2124295), (95, 1699436), (118, 1368190), (190, 849718), (236, 684095), (295, 547276), (361, 447220), (379, 425980), (380, 424859), (590, 273638), (722, 223610), (758, 212990), (1121, 144020), (1180, 136819), (1444, 111805), (1516, 106495), (1805, 89444), (1895, 85196), (2242, 72010), (3610, 44722), (3790, 42598), (4484, 36005), (5605, 28804), (7201, 22420), (7220, 22361), (7580, 21299), (11210, 14402)]