20456688

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{569}}^1$

素因数の和:694

約数の個数: 80

約数和(自身を含む): 61067520

約数和(自身を除く): 40610832

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 107, 112, 168, 214, 321, 336, 428, 569, 642, 749, 856, 1138, 1284, 1498, 1707, 1712, 2247, 2276, 2568, 2996, 3414, 3983, 4494, 4552, 5136, 5992, 6828, 7966, 8988, 9104, 11949, 11984, 13656, 15932, 17976, 23898, 27312, 31864, 35952, 47796, 60883, 63728, 95592, 121766, 182649, 191184, 243532, 365298, 426181, 487064, 730596, 852362, 974128, 1278543, 1461192, 1704724, 2557086, 2922384, 3409448, 5114172, 6818896, 10228344, 20456688]

約数ペア:

[(1, 20456688), (2, 10228344), (3, 6818896), (4, 5114172), (6, 3409448), (7, 2922384), (8, 2557086), (12, 1704724), (14, 1461192), (16, 1278543), (21, 974128), (24, 852362), (28, 730596), (42, 487064), (48, 426181), (56, 365298), (84, 243532), (107, 191184), (112, 182649), (168, 121766), (214, 95592), (321, 63728), (336, 60883), (428, 47796), (569, 35952), (642, 31864), (749, 27312), (856, 23898), (1138, 17976), (1284, 15932), (1498, 13656), (1707, 11984), (1712, 11949), (2247, 9104), (2276, 8988), (2568, 7966), (2996, 6828), (3414, 5992), (3983, 5136), (4494, 4552)]