400858276

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:581

約数の個数: 96

約数和(自身を含む): 917280000

約数和(自身を除く): 516421724

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 149, 182, 247, 266, 298, 364, 389, 494, 532, 596, 778, 988, 1043, 1556, 1729, 1937, 2086, 2723, 2831, 3458, 3874, 4172, 5057, 5446, 5662, 6916, 7391, 7748, 10114, 10892, 11324, 13559, 14782, 19817, 20228, 27118, 29564, 35399, 36803, 39634, 51737, 54236, 57961, 70798, 73606, 79268, 96083, 103474, 115922, 141596, 147212, 192166, 206948, 231844, 257621, 384332, 405727, 515242, 672581, 753493, 811454, 1030484, 1101259, 1345162, 1506986, 1622908, 2202518, 2690324, 3013972, 4405036, 5274451, 7708813, 10548902, 14316367, 15417626, 21097804, 28632734, 30835252, 57265468, 100214569, 200429138, 400858276]

約数ペア:

[(1, 400858276), (2, 200429138), (4, 100214569), (7, 57265468), (13, 30835252), (14, 28632734), (19, 21097804), (26, 15417626), (28, 14316367), (38, 10548902), (52, 7708813), (76, 5274451), (91, 4405036), (133, 3013972), (149, 2690324), (182, 2202518), (247, 1622908), (266, 1506986), (298, 1345162), (364, 1101259), (389, 1030484), (494, 811454), (532, 753493), (596, 672581), (778, 515242), (988, 405727), (1043, 384332), (1556, 257621), (1729, 231844), (1937, 206948), (2086, 192166), (2723, 147212), (2831, 141596), (3458, 115922), (3874, 103474), (4172, 96083), (5057, 79268), (5446, 73606), (5662, 70798), (6916, 57961), (7391, 54236), (7748, 51737), (10114, 39634), (10892, 36803), (11324, 35399), (13559, 29564), (14782, 27118), (19817, 20228)]