261529984

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2029}}^1$

素因数の和:2115

約数の個数: 64

約数和(自身を含む): 559062000

約数和(自身を除く): 297532016

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 53, 64, 76, 106, 128, 152, 212, 304, 424, 608, 848, 1007, 1216, 1696, 2014, 2029, 2432, 3392, 4028, 4058, 6784, 8056, 8116, 16112, 16232, 32224, 32464, 38551, 64448, 64928, 77102, 107537, 128896, 129856, 154204, 215074, 259712, 308408, 430148, 616816, 860296, 1233632, 1720592, 2043203, 2467264, 3441184, 4086406, 4934528, 6882368, 8172812, 13764736, 16345624, 32691248, 65382496, 130764992, 261529984]

約数ペア:

[(1, 261529984), (2, 130764992), (4, 65382496), (8, 32691248), (16, 16345624), (19, 13764736), (32, 8172812), (38, 6882368), (53, 4934528), (64, 4086406), (76, 3441184), (106, 2467264), (128, 2043203), (152, 1720592), (212, 1233632), (304, 860296), (424, 616816), (608, 430148), (848, 308408), (1007, 259712), (1216, 215074), (1696, 154204), (2014, 129856), (2029, 128896), (2432, 107537), (3392, 77102), (4028, 64928), (4058, 64448), (6784, 38551), (8056, 32464), (8116, 32224), (16112, 16232)]