25881225

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{383}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 46282752

約数和(自身を除く): 20401527

約数列:

[1, 3, 5, 15, 17, 25, 51, 53, 75, 85, 159, 255, 265, 383, 425, 795, 901, 1149, 1275, 1325, 1915, 2703, 3975, 4505, 5745, 6511, 9575, 13515, 19533, 20299, 22525, 28725, 32555, 60897, 67575, 97665, 101495, 162775, 304485, 345083, 488325, 507475, 1035249, 1522425, 1725415, 5176245, 8627075, 25881225]

約数ペア:

[(1, 25881225), (3, 8627075), (5, 5176245), (15, 1725415), (17, 1522425), (25, 1035249), (51, 507475), (53, 488325), (75, 345083), (85, 304485), (159, 162775), (255, 101495), (265, 97665), (383, 67575), (425, 60897), (795, 32555), (901, 28725), (1149, 22525), (1275, 20299), (1325, 19533), (1915, 13515), (2703, 9575), (3975, 6511), (4505, 5745)]