20145753004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{18979}}^1$

素因数の和:19282

約数の個数: 48

約数和(自身を含む): 38502828000

約数和(自身を除く): 18357074996

約数列:

[1, 2, 4, 13, 26, 52, 137, 149, 274, 298, 548, 596, 1781, 1937, 3562, 3874, 7124, 7748, 18979, 20413, 37958, 40826, 75916, 81652, 246727, 265369, 493454, 530738, 986908, 1061476, 2600123, 2827871, 5200246, 5655742, 10400492, 11311484, 33801599, 36762323, 67603198, 73524646, 135206396, 147049292, 387418327, 774836654, 1549673308, 5036438251, 10072876502, 20145753004]

約数ペア:

[(1, 20145753004), (2, 10072876502), (4, 5036438251), (13, 1549673308), (26, 774836654), (52, 387418327), (137, 147049292), (149, 135206396), (274, 73524646), (298, 67603198), (548, 36762323), (596, 33801599), (1781, 11311484), (1937, 10400492), (3562, 5655742), (3874, 5200246), (7124, 2827871), (7748, 2600123), (18979, 1061476), (20413, 986908), (37958, 530738), (40826, 493454), (75916, 265369), (81652, 246727)]