17856620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{347}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 39287808

約数和(自身を除く): 21431188

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 310, 332, 347, 415, 620, 694, 830, 1388, 1660, 1735, 2573, 3470, 5146, 6940, 10292, 10757, 12865, 21514, 25730, 28801, 43028, 51460, 53785, 57602, 107570, 115204, 144005, 215140, 288010, 576020, 892831, 1785662, 3571324, 4464155, 8928310, 17856620]

約数ペア:

[(1, 17856620), (2, 8928310), (4, 4464155), (5, 3571324), (10, 1785662), (20, 892831), (31, 576020), (62, 288010), (83, 215140), (124, 144005), (155, 115204), (166, 107570), (310, 57602), (332, 53785), (347, 51460), (415, 43028), (620, 28801), (694, 25730), (830, 21514), (1388, 12865), (1660, 10757), (1735, 10292), (2573, 6940), (3470, 5146)]