18411720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2161}}^1$

素因数の和:2246

約数の個数: 64

約数和(自身を含む): 56039040

約数和(自身を除く): 37627320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2161, 2840, 4260, 4322, 6483, 8520, 8644, 10805, 12966, 17288, 21610, 25932, 32415, 43220, 51864, 64830, 86440, 129660, 153431, 259320, 306862, 460293, 613724, 767155, 920586, 1227448, 1534310, 1841172, 2301465, 3068620, 3682344, 4602930, 6137240, 9205860, 18411720]

約数ペア:

[(1, 18411720), (2, 9205860), (3, 6137240), (4, 4602930), (5, 3682344), (6, 3068620), (8, 2301465), (10, 1841172), (12, 1534310), (15, 1227448), (20, 920586), (24, 767155), (30, 613724), (40, 460293), (60, 306862), (71, 259320), (120, 153431), (142, 129660), (213, 86440), (284, 64830), (355, 51864), (426, 43220), (568, 32415), (710, 25932), (852, 21610), (1065, 17288), (1420, 12966), (1704, 10805), (2130, 8644), (2161, 8520), (2840, 6483), (4260, 4322)]