28873240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{311}}^1$

素因数の和:544

約数の個数: 64

約数和(自身を含む): 71435520

約数和(自身を除く): 42562280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 211, 220, 311, 422, 440, 622, 844, 1055, 1244, 1555, 1688, 2110, 2321, 2488, 3110, 3421, 4220, 4642, 6220, 6842, 8440, 9284, 11605, 12440, 13684, 17105, 18568, 23210, 27368, 34210, 46420, 65621, 68420, 92840, 131242, 136840, 262484, 328105, 524968, 656210, 721831, 1312420, 1443662, 2624840, 2887324, 3609155, 5774648, 7218310, 14436620, 28873240]

約数ペア:

[(1, 28873240), (2, 14436620), (4, 7218310), (5, 5774648), (8, 3609155), (10, 2887324), (11, 2624840), (20, 1443662), (22, 1312420), (40, 721831), (44, 656210), (55, 524968), (88, 328105), (110, 262484), (211, 136840), (220, 131242), (311, 92840), (422, 68420), (440, 65621), (622, 46420), (844, 34210), (1055, 27368), (1244, 23210), (1555, 18568), (1688, 17105), (2110, 13684), (2321, 12440), (2488, 11605), (3110, 9284), (3421, 8440), (4220, 6842), (4642, 6220)]