25062880

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{163}}^1$

素因数の和:240

約数の個数: 72

約数和(自身を含む): 61558056

約数和(自身を除く): 36495176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 163, 248, 310, 326, 496, 620, 652, 815, 961, 992, 1240, 1304, 1630, 1922, 2480, 2608, 3260, 3844, 4805, 4960, 5053, 5216, 6520, 7688, 9610, 10106, 13040, 15376, 19220, 20212, 25265, 26080, 30752, 38440, 40424, 50530, 76880, 80848, 101060, 153760, 156643, 161696, 202120, 313286, 404240, 626572, 783215, 808480, 1253144, 1566430, 2506288, 3132860, 5012576, 6265720, 12531440, 25062880]

約数ペア:

[(1, 25062880), (2, 12531440), (4, 6265720), (5, 5012576), (8, 3132860), (10, 2506288), (16, 1566430), (20, 1253144), (31, 808480), (32, 783215), (40, 626572), (62, 404240), (80, 313286), (124, 202120), (155, 161696), (160, 156643), (163, 153760), (248, 101060), (310, 80848), (326, 76880), (496, 50530), (620, 40424), (652, 38440), (815, 30752), (961, 26080), (992, 25265), (1240, 20212), (1304, 19220), (1630, 15376), (1922, 13040), (2480, 10106), (2608, 9610), (3260, 7688), (3844, 6520), (4805, 5216), (4960, 5053)]