20678424

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{347}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 56125440

約数和(自身を除く): 35447016

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 191, 312, 347, 382, 573, 694, 764, 1041, 1146, 1388, 1528, 2082, 2292, 2483, 2776, 4164, 4511, 4584, 4966, 7449, 8328, 9022, 9932, 13533, 14898, 18044, 19864, 27066, 29796, 36088, 54132, 59592, 66277, 108264, 132554, 198831, 265108, 397662, 530216, 795324, 861601, 1590648, 1723202, 2584803, 3446404, 5169606, 6892808, 10339212, 20678424]

約数ペア:

[(1, 20678424), (2, 10339212), (3, 6892808), (4, 5169606), (6, 3446404), (8, 2584803), (12, 1723202), (13, 1590648), (24, 861601), (26, 795324), (39, 530216), (52, 397662), (78, 265108), (104, 198831), (156, 132554), (191, 108264), (312, 66277), (347, 59592), (382, 54132), (573, 36088), (694, 29796), (764, 27066), (1041, 19864), (1146, 18044), (1388, 14898), (1528, 13533), (2082, 9932), (2292, 9022), (2483, 8328), (2776, 7449), (4164, 4966), (4511, 4584)]