15947817125

素因数分解:

$5^3\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:495

約数の個数: 64

約数和(自身を含む): 20746672128

約数和(自身を除く): 4798855003

約数列:

[1, 5, 25, 61, 83, 113, 125, 223, 305, 415, 565, 1115, 1525, 2075, 2825, 5063, 5575, 6893, 7625, 9379, 10375, 13603, 14125, 18509, 25199, 25315, 27875, 34465, 46895, 68015, 92545, 125995, 126575, 172325, 234475, 340075, 462725, 572119, 629975, 632875, 861625, 1129049, 1172375, 1537139, 1700375, 2091517, 2313625, 2860595, 3149875, 5645245, 7685695, 10457585, 14302975, 28226225, 38428475, 52287925, 71514875, 127582537, 141131125, 192142375, 261439625, 637912685, 3189563425, 15947817125]

約数ペア:

[(1, 15947817125), (5, 3189563425), (25, 637912685), (61, 261439625), (83, 192142375), (113, 141131125), (125, 127582537), (223, 71514875), (305, 52287925), (415, 38428475), (565, 28226225), (1115, 14302975), (1525, 10457585), (2075, 7685695), (2825, 5645245), (5063, 3149875), (5575, 2860595), (6893, 2313625), (7625, 2091517), (9379, 1700375), (10375, 1537139), (13603, 1172375), (14125, 1129049), (18509, 861625), (25199, 632875), (25315, 629975), (27875, 572119), (34465, 462725), (46895, 340075), (68015, 234475), (92545, 172325), (125995, 126575)]