18488710

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 64

約数和(自身を含む): 37509120

約数和(自身を除く): 19020410

約数列:

[1, 2, 5, 10, 19, 31, 38, 43, 62, 73, 86, 95, 146, 155, 190, 215, 310, 365, 430, 589, 730, 817, 1178, 1333, 1387, 1634, 2263, 2666, 2774, 2945, 3139, 4085, 4526, 5890, 6278, 6665, 6935, 8170, 11315, 13330, 13870, 15695, 22630, 25327, 31390, 42997, 50654, 59641, 85994, 97309, 119282, 126635, 194618, 214985, 253270, 298205, 429970, 486545, 596410, 973090, 1848871, 3697742, 9244355, 18488710]

約数ペア:

[(1, 18488710), (2, 9244355), (5, 3697742), (10, 1848871), (19, 973090), (31, 596410), (38, 486545), (43, 429970), (62, 298205), (73, 253270), (86, 214985), (95, 194618), (146, 126635), (155, 119282), (190, 97309), (215, 85994), (310, 59641), (365, 50654), (430, 42997), (589, 31390), (730, 25327), (817, 22630), (1178, 15695), (1333, 13870), (1387, 13330), (1634, 11315), (2263, 8170), (2666, 6935), (2774, 6665), (2945, 6278), (3139, 5890), (4085, 4526)]