25064420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{929}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 56246400

約数和(自身を除く): 31181980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 929, 1349, 1420, 1858, 2698, 3716, 4645, 5396, 6745, 9290, 13490, 17651, 18580, 26980, 35302, 65959, 70604, 88255, 131918, 176510, 263836, 329795, 353020, 659590, 1253221, 1319180, 2506442, 5012884, 6266105, 12532210, 25064420]

約数ペア:

[(1, 25064420), (2, 12532210), (4, 6266105), (5, 5012884), (10, 2506442), (19, 1319180), (20, 1253221), (38, 659590), (71, 353020), (76, 329795), (95, 263836), (142, 176510), (190, 131918), (284, 88255), (355, 70604), (380, 65959), (710, 35302), (929, 26980), (1349, 18580), (1420, 17651), (1858, 13490), (2698, 9290), (3716, 6745), (4645, 5396)]