8889708425

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2029}}^1$

素因数の和:2143

約数の個数: 72

約数和(自身を含む): 12852068040

約数和(自身を除く): 3962359615

約数列:

[1, 5, 13, 17, 25, 61, 65, 85, 169, 221, 305, 325, 425, 793, 845, 1037, 1105, 1525, 2029, 2873, 3965, 4225, 5185, 5525, 10145, 10309, 13481, 14365, 19825, 25925, 26377, 34493, 50725, 51545, 67405, 71825, 123769, 131885, 172465, 175253, 257725, 337025, 342901, 448409, 618845, 659425, 862325, 876265, 1608997, 1714505, 2104073, 2242045, 3094225, 4381325, 5829317, 8044985, 8572525, 10520365, 11210225, 20916961, 27352949, 29146585, 40224925, 52601825, 104584805, 136764745, 145732925, 355588337, 522924025, 683823725, 1777941685, 8889708425]

約数ペア:

[(1, 8889708425), (5, 1777941685), (13, 683823725), (17, 522924025), (25, 355588337), (61, 145732925), (65, 136764745), (85, 104584805), (169, 52601825), (221, 40224925), (305, 29146585), (325, 27352949), (425, 20916961), (793, 11210225), (845, 10520365), (1037, 8572525), (1105, 8044985), (1525, 5829317), (2029, 4381325), (2873, 3094225), (3965, 2242045), (4225, 2104073), (5185, 1714505), (5525, 1608997), (10145, 876265), (10309, 862325), (13481, 659425), (14365, 618845), (19825, 448409), (25925, 342901), (26377, 337025), (34493, 257725), (50725, 175253), (51545, 172465), (67405, 131885), (71825, 123769)]