25171900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1$

素因数の和:128

約数の個数: 108

約数和(自身を含む): 63421288

約数和(自身を除く): 38249388

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 67, 68, 85, 100, 130, 134, 170, 221, 260, 268, 289, 325, 335, 340, 425, 442, 578, 650, 670, 850, 871, 884, 1105, 1139, 1156, 1300, 1340, 1445, 1675, 1700, 1742, 2210, 2278, 2890, 3350, 3484, 3757, 4355, 4420, 4556, 5525, 5695, 5780, 6700, 7225, 7514, 8710, 11050, 11390, 14450, 14807, 15028, 17420, 18785, 19363, 21775, 22100, 22780, 28475, 28900, 29614, 37570, 38726, 43550, 56950, 59228, 74035, 75140, 77452, 87100, 93925, 96815, 113900, 148070, 187850, 193630, 251719, 296140, 370175, 375700, 387260, 484075, 503438, 740350, 968150, 1006876, 1258595, 1480700, 1936300, 2517190, 5034380, 6292975, 12585950, 25171900]

約数ペア:

[(1, 25171900), (2, 12585950), (4, 6292975), (5, 5034380), (10, 2517190), (13, 1936300), (17, 1480700), (20, 1258595), (25, 1006876), (26, 968150), (34, 740350), (50, 503438), (52, 484075), (65, 387260), (67, 375700), (68, 370175), (85, 296140), (100, 251719), (130, 193630), (134, 187850), (170, 148070), (221, 113900), (260, 96815), (268, 93925), (289, 87100), (325, 77452), (335, 75140), (340, 74035), (425, 59228), (442, 56950), (578, 43550), (650, 38726), (670, 37570), (850, 29614), (871, 28900), (884, 28475), (1105, 22780), (1139, 22100), (1156, 21775), (1300, 19363), (1340, 18785), (1445, 17420), (1675, 15028), (1700, 14807), (1742, 14450), (2210, 11390), (2278, 11050), (2890, 8710), (3350, 7514), (3484, 7225), (3757, 6700), (4355, 5780), (4420, 5695), (4556, 5525)]