25290400

素因数分解:

$2^5\times 5^2\times {\mathrm{101}}^1\times {\mathrm{313}}^1$

素因数の和:434

約数の個数: 72

約数和(自身を含む): 62550684

約数和(自身を除く): 37260284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 101, 160, 200, 202, 313, 400, 404, 505, 626, 800, 808, 1010, 1252, 1565, 1616, 2020, 2504, 2525, 3130, 3232, 4040, 5008, 5050, 6260, 7825, 8080, 10016, 10100, 12520, 15650, 16160, 20200, 25040, 31300, 31613, 40400, 50080, 62600, 63226, 80800, 125200, 126452, 158065, 250400, 252904, 316130, 505808, 632260, 790325, 1011616, 1264520, 1580650, 2529040, 3161300, 5058080, 6322600, 12645200, 25290400]

約数ペア:

[(1, 25290400), (2, 12645200), (4, 6322600), (5, 5058080), (8, 3161300), (10, 2529040), (16, 1580650), (20, 1264520), (25, 1011616), (32, 790325), (40, 632260), (50, 505808), (80, 316130), (100, 252904), (101, 250400), (160, 158065), (200, 126452), (202, 125200), (313, 80800), (400, 63226), (404, 62600), (505, 50080), (626, 40400), (800, 31613), (808, 31300), (1010, 25040), (1252, 20200), (1565, 16160), (1616, 15650), (2020, 12520), (2504, 10100), (2525, 10016), (3130, 8080), (3232, 7825), (4040, 6260), (5008, 5050)]