1984450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:139

約数の個数: 48

約数和(自身を含む): 4124736

約数和(自身を除く): 2140286

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 71, 86, 130, 142, 215, 325, 355, 430, 559, 650, 710, 923, 1075, 1118, 1775, 1846, 2150, 2795, 3053, 3550, 4615, 5590, 6106, 9230, 13975, 15265, 23075, 27950, 30530, 39689, 46150, 76325, 79378, 152650, 198445, 396890, 992225, 1984450]

約数ペア:

[(1, 1984450), (2, 992225), (5, 396890), (10, 198445), (13, 152650), (25, 79378), (26, 76325), (43, 46150), (50, 39689), (65, 30530), (71, 27950), (86, 23075), (130, 15265), (142, 13975), (215, 9230), (325, 6106), (355, 5590), (430, 4615), (559, 3550), (650, 3053), (710, 2795), (923, 2150), (1075, 1846), (1118, 1775)]