1295272025780

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{659}}^1\times {\mathrm{465761}}^1$

素因数の和:466640

約数の個数: 48

約数和(自身を含む): 2737115599680

約数和(自身を除く): 1441843573900

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 659, 844, 1055, 1318, 2110, 2636, 3295, 4220, 6590, 13180, 139049, 278098, 465761, 556196, 695245, 931522, 1390490, 1863044, 2328805, 2780980, 4657610, 9315220, 98275571, 196551142, 306936499, 393102284, 491377855, 613872998, 982755710, 1227745996, 1534682495, 1965511420, 3069364990, 6138729980, 64763601289, 129527202578, 259054405156, 323818006445, 647636012890, 1295272025780]

約数ペア:

[(1, 1295272025780), (2, 647636012890), (4, 323818006445), (5, 259054405156), (10, 129527202578), (20, 64763601289), (211, 6138729980), (422, 3069364990), (659, 1965511420), (844, 1534682495), (1055, 1227745996), (1318, 982755710), (2110, 613872998), (2636, 491377855), (3295, 393102284), (4220, 306936499), (6590, 196551142), (13180, 98275571), (139049, 9315220), (278098, 4657610), (465761, 2780980), (556196, 2328805), (695245, 1863044), (931522, 1390490)]