28821567375

素因数分解:

$3^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{1113877}}^1$

素因数の和:1113921

約数の個数: 48

約数和(自身を含む): 54214670016

約数和(自身を除く): 25393102641

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 125, 207, 225, 345, 375, 575, 1035, 1125, 1725, 2875, 5175, 8625, 25875, 1113877, 3341631, 5569385, 10024893, 16708155, 25619171, 27846925, 50124465, 76857513, 83540775, 128095855, 139234625, 230572539, 250622325, 384287565, 417703875, 640479275, 1152862695, 1253111625, 1921437825, 3202396375, 5764313475, 9607189125, 28821567375]

約数ペア:

[(1, 28821567375), (3, 9607189125), (5, 5764313475), (9, 3202396375), (15, 1921437825), (23, 1253111625), (25, 1152862695), (45, 640479275), (69, 417703875), (75, 384287565), (115, 250622325), (125, 230572539), (207, 139234625), (225, 128095855), (345, 83540775), (375, 76857513), (575, 50124465), (1035, 27846925), (1125, 25619171), (1725, 16708155), (2875, 10024893), (5175, 5569385), (8625, 3341631), (25875, 1113877)]