17959540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 39513600

約数和(自身を除く): 21554060

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 310, 332, 349, 415, 620, 698, 830, 1396, 1660, 1745, 2573, 3490, 5146, 6980, 10292, 10819, 12865, 21638, 25730, 28967, 43276, 51460, 54095, 57934, 108190, 115868, 144835, 216380, 289670, 579340, 897977, 1795954, 3591908, 4489885, 8979770, 17959540]

約数ペア:

[(1, 17959540), (2, 8979770), (4, 4489885), (5, 3591908), (10, 1795954), (20, 897977), (31, 579340), (62, 289670), (83, 216380), (124, 144835), (155, 115868), (166, 108190), (310, 57934), (332, 54095), (349, 51460), (415, 43276), (620, 28967), (698, 25730), (830, 21638), (1396, 12865), (1660, 10819), (1745, 10292), (2573, 6980), (3490, 5146)]