16872680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1237}}^1$

素因数の和:1290

約数の個数: 64

約数和(自身を含む): 42785280

約数和(自身を除く): 25912600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1237, 1240, 1364, 1705, 2474, 2728, 3410, 4948, 6185, 6820, 9896, 12370, 13607, 13640, 24740, 27214, 38347, 49480, 54428, 68035, 76694, 108856, 136070, 153388, 191735, 272140, 306776, 383470, 421817, 544280, 766940, 843634, 1533880, 1687268, 2109085, 3374536, 4218170, 8436340, 16872680]

約数ペア:

[(1, 16872680), (2, 8436340), (4, 4218170), (5, 3374536), (8, 2109085), (10, 1687268), (11, 1533880), (20, 843634), (22, 766940), (31, 544280), (40, 421817), (44, 383470), (55, 306776), (62, 272140), (88, 191735), (110, 153388), (124, 136070), (155, 108856), (220, 76694), (248, 68035), (310, 54428), (341, 49480), (440, 38347), (620, 27214), (682, 24740), (1237, 13640), (1240, 13607), (1364, 12370), (1705, 9896), (2474, 6820), (2728, 6185), (3410, 4948)]