627690400

素因数分解:

$2^5\times 5^2\times {\mathrm{389}}^1\times {\mathrm{2017}}^1$

素因数の和:2426

約数の個数: 72

約数和(自身を含む): 1537050060

約数和(自身を除く): 909359660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 389, 400, 778, 800, 1556, 1945, 2017, 3112, 3890, 4034, 6224, 7780, 8068, 9725, 10085, 12448, 15560, 16136, 19450, 20170, 31120, 32272, 38900, 40340, 50425, 62240, 64544, 77800, 80680, 100850, 155600, 161360, 201700, 311200, 322720, 403400, 784613, 806800, 1569226, 1613600, 3138452, 3923065, 6276904, 7846130, 12553808, 15692260, 19615325, 25107616, 31384520, 39230650, 62769040, 78461300, 125538080, 156922600, 313845200, 627690400]

約数ペア:

[(1, 627690400), (2, 313845200), (4, 156922600), (5, 125538080), (8, 78461300), (10, 62769040), (16, 39230650), (20, 31384520), (25, 25107616), (32, 19615325), (40, 15692260), (50, 12553808), (80, 7846130), (100, 6276904), (160, 3923065), (200, 3138452), (389, 1613600), (400, 1569226), (778, 806800), (800, 784613), (1556, 403400), (1945, 322720), (2017, 311200), (3112, 201700), (3890, 161360), (4034, 155600), (6224, 100850), (7780, 80680), (8068, 77800), (9725, 64544), (10085, 62240), (12448, 50425), (15560, 40340), (16136, 38900), (19450, 32272), (20170, 31120)]