80139400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{499}}^1$

素因数の和:599

約数の個数: 96

約数和(自身を含む): 206460000

約数和(自身を除く): 126320600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 73, 88, 100, 110, 146, 200, 220, 275, 292, 365, 440, 499, 550, 584, 730, 803, 998, 1100, 1460, 1606, 1825, 1996, 2200, 2495, 2920, 3212, 3650, 3992, 4015, 4990, 5489, 6424, 7300, 8030, 9980, 10978, 12475, 14600, 16060, 19960, 20075, 21956, 24950, 27445, 32120, 36427, 40150, 43912, 49900, 54890, 72854, 80300, 99800, 109780, 137225, 145708, 160600, 182135, 219560, 274450, 291416, 364270, 400697, 548900, 728540, 801394, 910675, 1097800, 1457080, 1602788, 1821350, 2003485, 3205576, 3642700, 4006970, 7285400, 8013940, 10017425, 16027880, 20034850, 40069700, 80139400]

約数ペア:

[(1, 80139400), (2, 40069700), (4, 20034850), (5, 16027880), (8, 10017425), (10, 8013940), (11, 7285400), (20, 4006970), (22, 3642700), (25, 3205576), (40, 2003485), (44, 1821350), (50, 1602788), (55, 1457080), (73, 1097800), (88, 910675), (100, 801394), (110, 728540), (146, 548900), (200, 400697), (220, 364270), (275, 291416), (292, 274450), (365, 219560), (440, 182135), (499, 160600), (550, 145708), (584, 137225), (730, 109780), (803, 99800), (998, 80300), (1100, 72854), (1460, 54890), (1606, 49900), (1825, 43912), (1996, 40150), (2200, 36427), (2495, 32120), (2920, 27445), (3212, 24950), (3650, 21956), (3992, 20075), (4015, 19960), (4990, 16060), (5489, 14600), (6424, 12475), (7300, 10978), (8030, 9980)]