779720500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{863}}^1$

素因数の和:1034

約数の個数: 96

約数和(自身を含む): 1849236480

約数和(自身を除く): 1069515980

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 139, 250, 260, 278, 325, 500, 556, 650, 695, 863, 1300, 1390, 1625, 1726, 1807, 2780, 3250, 3452, 3475, 3614, 4315, 6500, 6950, 7228, 8630, 9035, 11219, 13900, 17260, 17375, 18070, 21575, 22438, 34750, 36140, 43150, 44876, 45175, 56095, 69500, 86300, 90350, 107875, 112190, 119957, 180700, 215750, 224380, 225875, 239914, 280475, 431500, 451750, 479828, 560950, 599785, 903500, 1121900, 1199570, 1402375, 1559441, 2399140, 2804750, 2998925, 3118882, 5609500, 5997850, 6237764, 7797205, 11995700, 14994625, 15594410, 29989250, 31188820, 38986025, 59978500, 77972050, 155944100, 194930125, 389860250, 779720500]

約数ペア:

[(1, 779720500), (2, 389860250), (4, 194930125), (5, 155944100), (10, 77972050), (13, 59978500), (20, 38986025), (25, 31188820), (26, 29989250), (50, 15594410), (52, 14994625), (65, 11995700), (100, 7797205), (125, 6237764), (130, 5997850), (139, 5609500), (250, 3118882), (260, 2998925), (278, 2804750), (325, 2399140), (500, 1559441), (556, 1402375), (650, 1199570), (695, 1121900), (863, 903500), (1300, 599785), (1390, 560950), (1625, 479828), (1726, 451750), (1807, 431500), (2780, 280475), (3250, 239914), (3452, 225875), (3475, 224380), (3614, 215750), (4315, 180700), (6500, 119957), (6950, 112190), (7228, 107875), (8630, 90350), (9035, 86300), (11219, 69500), (13900, 56095), (17260, 45175), (17375, 44876), (18070, 43150), (21575, 36140), (22438, 34750)]