648004160

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{65323}}^1$

素因数の和:65371

約数の個数: 56

約数和(自身を含む): 1592860416

約数和(自身を除く): 944856256

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, 65323, 130646, 261292, 326615, 522584, 653230, 1045168, 1306460, 2025013, 2090336, 2612920, 4050026, 4180672, 5225840, 8100052, 10125065, 10451680, 16200104, 20250130, 20903360, 32400208, 40500260, 64800416, 81000520, 129600832, 162001040, 324002080, 648004160]

約数ペア:

[(1, 648004160), (2, 324002080), (4, 162001040), (5, 129600832), (8, 81000520), (10, 64800416), (16, 40500260), (20, 32400208), (31, 20903360), (32, 20250130), (40, 16200104), (62, 10451680), (64, 10125065), (80, 8100052), (124, 5225840), (155, 4180672), (160, 4050026), (248, 2612920), (310, 2090336), (320, 2025013), (496, 1306460), (620, 1045168), (992, 653230), (1240, 522584), (1984, 326615), (2480, 261292), (4960, 130646), (9920, 65323)]