80874950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{563}}^1$

素因数の和:618

約数の個数: 72

約数和(自身を含む): 172776888

約数和(自身を除く): 91901938

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 130, 169, 170, 221, 325, 338, 425, 442, 563, 650, 845, 850, 1105, 1126, 1690, 2210, 2815, 2873, 4225, 5525, 5630, 5746, 7319, 8450, 9571, 11050, 14075, 14365, 14638, 19142, 28150, 28730, 36595, 47855, 71825, 73190, 95147, 95710, 124423, 143650, 182975, 190294, 239275, 248846, 365950, 475735, 478550, 622115, 951470, 1244230, 1617499, 2378675, 3110575, 3234998, 4757350, 6221150, 8087495, 16174990, 40437475, 80874950]

約数ペア:

[(1, 80874950), (2, 40437475), (5, 16174990), (10, 8087495), (13, 6221150), (17, 4757350), (25, 3234998), (26, 3110575), (34, 2378675), (50, 1617499), (65, 1244230), (85, 951470), (130, 622115), (169, 478550), (170, 475735), (221, 365950), (325, 248846), (338, 239275), (425, 190294), (442, 182975), (563, 143650), (650, 124423), (845, 95710), (850, 95147), (1105, 73190), (1126, 71825), (1690, 47855), (2210, 36595), (2815, 28730), (2873, 28150), (4225, 19142), (5525, 14638), (5630, 14365), (5746, 14075), (7319, 11050), (8450, 9571)]