210375425

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:183

約数の個数: 72

約数和(自身を含む): 312468840

約数和(自身を除く): 102093415

約数列:

[1, 5, 13, 17, 25, 29, 65, 85, 101, 145, 169, 221, 325, 377, 425, 493, 505, 725, 845, 1105, 1313, 1717, 1885, 2465, 2525, 2873, 2929, 4225, 4901, 5525, 6409, 6565, 8585, 9425, 12325, 14365, 14645, 17069, 22321, 24505, 32045, 32825, 38077, 42925, 49793, 71825, 73225, 83317, 85345, 111605, 122525, 160225, 190385, 248965, 290173, 416585, 426725, 495001, 558025, 647309, 951925, 1244825, 1450865, 2082925, 2475005, 3236545, 7254325, 8415017, 12375025, 16182725, 42075085, 210375425]

約数ペア:

[(1, 210375425), (5, 42075085), (13, 16182725), (17, 12375025), (25, 8415017), (29, 7254325), (65, 3236545), (85, 2475005), (101, 2082925), (145, 1450865), (169, 1244825), (221, 951925), (325, 647309), (377, 558025), (425, 495001), (493, 426725), (505, 416585), (725, 290173), (845, 248965), (1105, 190385), (1313, 160225), (1717, 122525), (1885, 111605), (2465, 85345), (2525, 83317), (2873, 73225), (2929, 71825), (4225, 49793), (4901, 42925), (5525, 38077), (6409, 32825), (6565, 32045), (8585, 24505), (9425, 22321), (12325, 17069), (14365, 14645)]