19829225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 29091888

約数和(自身を除く): 9262663

約数列:

[1, 5, 13, 17, 25, 37, 65, 85, 97, 185, 221, 325, 425, 481, 485, 629, 925, 1105, 1261, 1649, 2405, 2425, 3145, 3589, 5525, 6305, 8177, 8245, 12025, 15725, 17945, 21437, 31525, 40885, 41225, 46657, 61013, 89725, 107185, 204425, 233285, 305065, 535925, 793169, 1166425, 1525325, 3965845, 19829225]

約数ペア:

[(1, 19829225), (5, 3965845), (13, 1525325), (17, 1166425), (25, 793169), (37, 535925), (65, 305065), (85, 233285), (97, 204425), (185, 107185), (221, 89725), (325, 61013), (425, 46657), (481, 41225), (485, 40885), (629, 31525), (925, 21437), (1105, 17945), (1261, 15725), (1649, 12025), (2405, 8245), (2425, 8177), (3145, 6305), (3589, 5525)]