25189450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{271}}^1$

素因数の和:320

約数の個数: 72

約数和(自身を含む): 55550016

約数和(自身を除く): 30360566

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 130, 143, 169, 271, 275, 286, 325, 338, 542, 550, 650, 715, 845, 1355, 1430, 1690, 1859, 2710, 2981, 3523, 3575, 3718, 4225, 5962, 6775, 7046, 7150, 8450, 9295, 13550, 14905, 17615, 18590, 29810, 35230, 38753, 45799, 46475, 74525, 77506, 88075, 91598, 92950, 149050, 176150, 193765, 228995, 387530, 457990, 503789, 968825, 1007578, 1144975, 1937650, 2289950, 2518945, 5037890, 12594725, 25189450]

約数ペア:

[(1, 25189450), (2, 12594725), (5, 5037890), (10, 2518945), (11, 2289950), (13, 1937650), (22, 1144975), (25, 1007578), (26, 968825), (50, 503789), (55, 457990), (65, 387530), (110, 228995), (130, 193765), (143, 176150), (169, 149050), (271, 92950), (275, 91598), (286, 88075), (325, 77506), (338, 74525), (542, 46475), (550, 45799), (650, 38753), (715, 35230), (845, 29810), (1355, 18590), (1430, 17615), (1690, 14905), (1859, 13550), (2710, 9295), (2981, 8450), (3523, 7150), (3575, 7046), (3718, 6775), (4225, 5962)]