819957440

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{82657}}^1$

素因数の和:82705

約数の個数: 56

約数和(自身を含む): 2015532672

約数和(自身を除く): 1195575232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 82657, 165314, 330628, 413285, 661256, 826570, 1322512, 1653140, 2562367, 2645024, 3306280, 5124734, 5290048, 6612560, 10249468, 12811835, 13225120, 20498936, 25623670, 26450240, 40997872, 51247340, 81995744, 102494680, 163991488, 204989360, 409978720, 819957440]

約数ペア:

[(1, 819957440), (2, 409978720), (4, 204989360), (5, 163991488), (8, 102494680), (10, 81995744), (16, 51247340), (20, 40997872), (31, 26450240), (32, 25623670), (40, 20498936), (62, 13225120), (64, 12811835), (80, 10249468), (124, 6612560), (155, 5290048), (160, 5124734), (248, 3306280), (310, 2645024), (320, 2562367), (496, 1653140), (620, 1322512), (992, 826570), (1240, 661256), (1984, 413285), (2480, 330628), (4960, 165314), (9920, 82657)]