678390050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:444

約数の個数: 96

約数和(自身を含む): 1418909184

約数和(自身を除く): 740519134

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 131, 155, 257, 262, 310, 325, 403, 514, 650, 655, 775, 806, 1285, 1310, 1550, 1703, 2015, 2570, 3275, 3341, 3406, 4030, 4061, 6425, 6550, 6682, 7967, 8122, 8515, 10075, 12850, 15934, 16705, 17030, 20150, 20305, 33410, 33667, 39835, 40610, 42575, 52793, 67334, 79670, 83525, 85150, 101525, 103571, 105586, 167050, 168335, 199175, 203050, 207142, 263965, 336670, 398350, 437671, 517855, 527930, 841675, 875342, 1035710, 1043677, 1319825, 1683350, 2087354, 2188355, 2589275, 2639650, 4376710, 5178550, 5218385, 10436770, 10941775, 13567801, 21883550, 26091925, 27135602, 52183850, 67839005, 135678010, 339195025, 678390050]

約数ペア:

[(1, 678390050), (2, 339195025), (5, 135678010), (10, 67839005), (13, 52183850), (25, 27135602), (26, 26091925), (31, 21883550), (50, 13567801), (62, 10941775), (65, 10436770), (130, 5218385), (131, 5178550), (155, 4376710), (257, 2639650), (262, 2589275), (310, 2188355), (325, 2087354), (403, 1683350), (514, 1319825), (650, 1043677), (655, 1035710), (775, 875342), (806, 841675), (1285, 527930), (1310, 517855), (1550, 437671), (1703, 398350), (2015, 336670), (2570, 263965), (3275, 207142), (3341, 203050), (3406, 199175), (4030, 168335), (4061, 167050), (6425, 105586), (6550, 103571), (6682, 101525), (7967, 85150), (8122, 83525), (8515, 79670), (10075, 67334), (12850, 52793), (15934, 42575), (16705, 40610), (17030, 39835), (20150, 33667), (20305, 33410)]