20358910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{619}}^1$

素因数の和:673

約数の個数: 64

約数和(自身を含む): 44997120

約数和(自身を除く): 24638210

約数列:

[1, 2, 5, 10, 11, 13, 22, 23, 26, 46, 55, 65, 110, 115, 130, 143, 230, 253, 286, 299, 506, 598, 619, 715, 1238, 1265, 1430, 1495, 2530, 2990, 3095, 3289, 6190, 6578, 6809, 8047, 13618, 14237, 16094, 16445, 28474, 32890, 34045, 40235, 68090, 71185, 80470, 88517, 142370, 156607, 177034, 185081, 313214, 370162, 442585, 783035, 885170, 925405, 1566070, 1850810, 2035891, 4071782, 10179455, 20358910]

約数ペア:

[(1, 20358910), (2, 10179455), (5, 4071782), (10, 2035891), (11, 1850810), (13, 1566070), (22, 925405), (23, 885170), (26, 783035), (46, 442585), (55, 370162), (65, 313214), (110, 185081), (115, 177034), (130, 156607), (143, 142370), (230, 88517), (253, 80470), (286, 71185), (299, 68090), (506, 40235), (598, 34045), (619, 32890), (715, 28474), (1238, 16445), (1265, 16094), (1430, 14237), (1495, 13618), (2530, 8047), (2990, 6809), (3095, 6578), (3289, 6190)]