18090280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1831}}^1$

素因数の和:1874

約数の個数: 64

約数和(自身を含む): 46166400

約数和(自身を除く): 28076120

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1831, 1976, 2470, 3662, 4940, 7324, 9155, 9880, 14648, 18310, 23803, 34789, 36620, 47606, 69578, 73240, 95212, 119015, 139156, 173945, 190424, 238030, 278312, 347890, 452257, 476060, 695780, 904514, 952120, 1391560, 1809028, 2261285, 3618056, 4522570, 9045140, 18090280]

約数ペア:

[(1, 18090280), (2, 9045140), (4, 4522570), (5, 3618056), (8, 2261285), (10, 1809028), (13, 1391560), (19, 952120), (20, 904514), (26, 695780), (38, 476060), (40, 452257), (52, 347890), (65, 278312), (76, 238030), (95, 190424), (104, 173945), (130, 139156), (152, 119015), (190, 95212), (247, 73240), (260, 69578), (380, 47606), (494, 36620), (520, 34789), (760, 23803), (988, 18310), (1235, 14648), (1831, 9880), (1976, 9155), (2470, 7324), (3662, 4940)]