219954020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{76907}}^1$

素因数の和:76940

約数の個数: 48

約数和(自身を含む): 542662848

約数和(自身を除く): 322708828

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 76907, 153814, 307628, 384535, 769070, 845977, 999791, 1538140, 1691954, 1999582, 3383908, 3999164, 4229885, 4998955, 8459770, 9997910, 10997701, 16919540, 19995820, 21995402, 43990804, 54988505, 109977010, 219954020]

約数ペア:

[(1, 219954020), (2, 109977010), (4, 54988505), (5, 43990804), (10, 21995402), (11, 19995820), (13, 16919540), (20, 10997701), (22, 9997910), (26, 8459770), (44, 4998955), (52, 4229885), (55, 3999164), (65, 3383908), (110, 1999582), (130, 1691954), (143, 1538140), (220, 999791), (260, 845977), (286, 769070), (572, 384535), (715, 307628), (1430, 153814), (2860, 76907)]