20312565

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:698

約数の個数: 64

約数和(自身を含む): 41803776

約数和(自身を除く): 21491211

約数列:

[1, 3, 5, 7, 13, 15, 21, 23, 35, 39, 65, 69, 91, 105, 115, 161, 195, 273, 299, 345, 455, 483, 647, 805, 897, 1365, 1495, 1941, 2093, 2415, 3235, 4485, 4529, 6279, 8411, 9705, 10465, 13587, 14881, 22645, 25233, 31395, 42055, 44643, 58877, 67935, 74405, 104167, 126165, 176631, 193453, 223215, 294385, 312501, 520835, 580359, 883155, 967265, 1354171, 1562505, 2901795, 4062513, 6770855, 20312565]

約数ペア:

[(1, 20312565), (3, 6770855), (5, 4062513), (7, 2901795), (13, 1562505), (15, 1354171), (21, 967265), (23, 883155), (35, 580359), (39, 520835), (65, 312501), (69, 294385), (91, 223215), (105, 193453), (115, 176631), (161, 126165), (195, 104167), (273, 74405), (299, 67935), (345, 58877), (455, 44643), (483, 42055), (647, 31395), (805, 25233), (897, 22645), (1365, 14881), (1495, 13587), (1941, 10465), (2093, 9705), (2415, 8411), (3235, 6279), (4485, 4529)]