261634712

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{691}}^1$

素因数の和:816

約数の個数: 64

約数和(自身を含む): 538099200

約数和(自身を除く): 276464488

約数列:

[1, 2, 4, 8, 19, 38, 47, 53, 76, 94, 106, 152, 188, 212, 376, 424, 691, 893, 1007, 1382, 1786, 2014, 2491, 2764, 3572, 4028, 4982, 5528, 7144, 8056, 9964, 13129, 19928, 26258, 32477, 36623, 47329, 52516, 64954, 73246, 94658, 105032, 129908, 146492, 189316, 259816, 292984, 378632, 617063, 695837, 1234126, 1391674, 1721281, 2468252, 2783348, 3442562, 4936504, 5566696, 6885124, 13770248, 32704339, 65408678, 130817356, 261634712]

約数ペア:

[(1, 261634712), (2, 130817356), (4, 65408678), (8, 32704339), (19, 13770248), (38, 6885124), (47, 5566696), (53, 4936504), (76, 3442562), (94, 2783348), (106, 2468252), (152, 1721281), (188, 1391674), (212, 1234126), (376, 695837), (424, 617063), (691, 378632), (893, 292984), (1007, 259816), (1382, 189316), (1786, 146492), (2014, 129908), (2491, 105032), (2764, 94658), (3572, 73246), (4028, 64954), (4982, 52516), (5528, 47329), (7144, 36623), (8056, 32477), (9964, 26258), (13129, 19928)]