1904240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1831}}^1$

素因数の和:1857

約数の個数: 40

約数和(自身を含む): 4770528

約数和(自身を除く): 2866288

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1831, 3662, 7324, 9155, 14648, 18310, 23803, 29296, 36620, 47606, 73240, 95212, 119015, 146480, 190424, 238030, 380848, 476060, 952120, 1904240]

約数ペア:

[(1, 1904240), (2, 952120), (4, 476060), (5, 380848), (8, 238030), (10, 190424), (13, 146480), (16, 119015), (20, 95212), (26, 73240), (40, 47606), (52, 36620), (65, 29296), (80, 23803), (104, 18310), (130, 14648), (208, 9155), (260, 7324), (520, 3662), (1040, 1831)]