20078081725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{787}}^1\times {\mathrm{3413}}^1$

素因数の和:4246

約数の個数: 48

約数和(自身を含む): 28021456512

約数和(自身を除く): 7943374787

約数列:

[1, 5, 13, 23, 25, 65, 115, 299, 325, 575, 787, 1495, 3413, 3935, 7475, 10231, 17065, 18101, 19675, 44369, 51155, 78499, 85325, 90505, 221845, 235313, 255775, 392495, 452525, 1020487, 1109225, 1176565, 1962475, 2686031, 5102435, 5882825, 13430155, 25512175, 34918403, 61778713, 67150775, 174592015, 308893565, 803123269, 872960075, 1544467825, 4015616345, 20078081725]

約数ペア:

[(1, 20078081725), (5, 4015616345), (13, 1544467825), (23, 872960075), (25, 803123269), (65, 308893565), (115, 174592015), (299, 67150775), (325, 61778713), (575, 34918403), (787, 25512175), (1495, 13430155), (3413, 5882825), (3935, 5102435), (7475, 2686031), (10231, 1962475), (17065, 1176565), (18101, 1109225), (19675, 1020487), (44369, 452525), (51155, 392495), (78499, 255775), (85325, 235313), (90505, 221845)]