20386980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2137}}^1$

素因数の和:2205

約数の個数: 72

約数和(自身を含む): 63036792

約数和(自身を除く): 42649812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2137, 2385, 3180, 4274, 4770, 6411, 8548, 9540, 10685, 12822, 19233, 21370, 25644, 32055, 38466, 42740, 64110, 76932, 96165, 113261, 128220, 192330, 226522, 339783, 384660, 453044, 566305, 679566, 1019349, 1132610, 1359132, 1698915, 2038698, 2265220, 3397830, 4077396, 5096745, 6795660, 10193490, 20386980]

約数ペア:

[(1, 20386980), (2, 10193490), (3, 6795660), (4, 5096745), (5, 4077396), (6, 3397830), (9, 2265220), (10, 2038698), (12, 1698915), (15, 1359132), (18, 1132610), (20, 1019349), (30, 679566), (36, 566305), (45, 453044), (53, 384660), (60, 339783), (90, 226522), (106, 192330), (159, 128220), (180, 113261), (212, 96165), (265, 76932), (318, 64110), (477, 42740), (530, 38466), (636, 32055), (795, 25644), (954, 21370), (1060, 19233), (1590, 12822), (1908, 10685), (2137, 9540), (2385, 8548), (3180, 6411), (4274, 4770)]