291214640

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{13841}}^1$

素因数の和:14117

約数の個数: 40

約数和(自身を含む): 679697568

約数和(自身を除く): 388482928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 2104, 2630, 4208, 5260, 10520, 13841, 21040, 27682, 55364, 69205, 110728, 138410, 221456, 276820, 553640, 1107280, 3640183, 7280366, 14560732, 18200915, 29121464, 36401830, 58242928, 72803660, 145607320, 291214640]

約数ペア:

[(1, 291214640), (2, 145607320), (4, 72803660), (5, 58242928), (8, 36401830), (10, 29121464), (16, 18200915), (20, 14560732), (40, 7280366), (80, 3640183), (263, 1107280), (526, 553640), (1052, 276820), (1315, 221456), (2104, 138410), (2630, 110728), (4208, 69205), (5260, 55364), (10520, 27682), (13841, 21040)]