251624750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{557}}^1$

素因数の和:726

約数の個数: 64

約数和(自身を含む): 511842240

約数和(自身を除く): 260217490

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 139, 250, 278, 325, 557, 650, 695, 1114, 1390, 1625, 1807, 2785, 3250, 3475, 3614, 5570, 6950, 7241, 9035, 13925, 14482, 17375, 18070, 27850, 34750, 36205, 45175, 69625, 72410, 77423, 90350, 139250, 154846, 181025, 225875, 362050, 387115, 451750, 774230, 905125, 1006499, 1810250, 1935575, 2012998, 3871150, 5032495, 9677875, 10064990, 19355750, 25162475, 50324950, 125812375, 251624750]

約数ペア:

[(1, 251624750), (2, 125812375), (5, 50324950), (10, 25162475), (13, 19355750), (25, 10064990), (26, 9677875), (50, 5032495), (65, 3871150), (125, 2012998), (130, 1935575), (139, 1810250), (250, 1006499), (278, 905125), (325, 774230), (557, 451750), (650, 387115), (695, 362050), (1114, 225875), (1390, 181025), (1625, 154846), (1807, 139250), (2785, 90350), (3250, 77423), (3475, 72410), (3614, 69625), (5570, 45175), (6950, 36205), (7241, 34750), (9035, 27850), (13925, 18070), (14482, 17375)]