257841632

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{4261}}^1$

素因数の和:4363

約数の個数: 48

約数和(自身を含む): 532715904

約数和(自身を除く): 274874272

約数列:

[1, 2, 4, 8, 16, 31, 32, 61, 62, 122, 124, 244, 248, 488, 496, 976, 992, 1891, 1952, 3782, 4261, 7564, 8522, 15128, 17044, 30256, 34088, 60512, 68176, 132091, 136352, 259921, 264182, 519842, 528364, 1039684, 1056728, 2079368, 2113456, 4158736, 4226912, 8057551, 8317472, 16115102, 32230204, 64460408, 128920816, 257841632]

約数ペア:

[(1, 257841632), (2, 128920816), (4, 64460408), (8, 32230204), (16, 16115102), (31, 8317472), (32, 8057551), (61, 4226912), (62, 4158736), (122, 2113456), (124, 2079368), (244, 1056728), (248, 1039684), (488, 528364), (496, 519842), (976, 264182), (992, 259921), (1891, 136352), (1952, 132091), (3782, 68176), (4261, 60512), (7564, 34088), (8522, 30256), (15128, 17044)]