868778865

素因数分解:

$3^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10889}}^1$

素因数の和:11103

約数の個数: 40

約数和(自身を含む): 1565415720

約数和(自身を除く): 696636855

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 197, 405, 591, 985, 1773, 2955, 5319, 8865, 10889, 15957, 26595, 32667, 54445, 79785, 98001, 163335, 294003, 490005, 882009, 1470015, 2145133, 4410045, 6435399, 10725665, 19306197, 32176995, 57918591, 96530985, 173755773, 289592955, 868778865]

約数ペア:

[(1, 868778865), (3, 289592955), (5, 173755773), (9, 96530985), (15, 57918591), (27, 32176995), (45, 19306197), (81, 10725665), (135, 6435399), (197, 4410045), (405, 2145133), (591, 1470015), (985, 882009), (1773, 490005), (2955, 294003), (5319, 163335), (8865, 98001), (10889, 79785), (15957, 54445), (26595, 32667)]