20488728

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{677}}^1$

素因数の和:796

約数の個数: 64

約数和(自身を含む): 55812960

約数和(自身を除く): 35324232

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 97, 104, 156, 194, 291, 312, 388, 582, 677, 776, 1164, 1261, 1354, 2031, 2328, 2522, 2708, 3783, 4062, 5044, 5416, 7566, 8124, 8801, 10088, 15132, 16248, 17602, 26403, 30264, 35204, 52806, 65669, 70408, 105612, 131338, 197007, 211224, 262676, 394014, 525352, 788028, 853697, 1576056, 1707394, 2561091, 3414788, 5122182, 6829576, 10244364, 20488728]

約数ペア:

[(1, 20488728), (2, 10244364), (3, 6829576), (4, 5122182), (6, 3414788), (8, 2561091), (12, 1707394), (13, 1576056), (24, 853697), (26, 788028), (39, 525352), (52, 394014), (78, 262676), (97, 211224), (104, 197007), (156, 131338), (194, 105612), (291, 70408), (312, 65669), (388, 52806), (582, 35204), (677, 30264), (776, 26403), (1164, 17602), (1261, 16248), (1354, 15132), (2031, 10088), (2328, 8801), (2522, 8124), (2708, 7566), (3783, 5416), (4062, 5044)]