51538860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:308

約数の個数: 144

約数和(自身を含む): 166682880

約数和(自身を除く): 115144020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 59, 60, 69, 90, 92, 115, 118, 138, 177, 180, 207, 211, 230, 236, 276, 295, 345, 354, 414, 422, 460, 531, 590, 633, 690, 708, 828, 844, 885, 1035, 1055, 1062, 1180, 1266, 1357, 1380, 1770, 1899, 2070, 2110, 2124, 2532, 2655, 2714, 3165, 3540, 3798, 4071, 4140, 4220, 4853, 5310, 5428, 6330, 6785, 7596, 8142, 9495, 9706, 10620, 12213, 12449, 12660, 13570, 14559, 16284, 18990, 19412, 20355, 24265, 24426, 24898, 27140, 29118, 37347, 37980, 40710, 43677, 48530, 48852, 49796, 58236, 61065, 62245, 72795, 74694, 81420, 87354, 97060, 112041, 122130, 124490, 145590, 149388, 174708, 186735, 218385, 224082, 244260, 248980, 286327, 291180, 373470, 436770, 448164, 560205, 572654, 746940, 858981, 873540, 1120410, 1145308, 1431635, 1717962, 2240820, 2576943, 2863270, 3435924, 4294905, 5153886, 5726540, 8589810, 10307772, 12884715, 17179620, 25769430, 51538860]

約数ペア:

[(1, 51538860), (2, 25769430), (3, 17179620), (4, 12884715), (5, 10307772), (6, 8589810), (9, 5726540), (10, 5153886), (12, 4294905), (15, 3435924), (18, 2863270), (20, 2576943), (23, 2240820), (30, 1717962), (36, 1431635), (45, 1145308), (46, 1120410), (59, 873540), (60, 858981), (69, 746940), (90, 572654), (92, 560205), (115, 448164), (118, 436770), (138, 373470), (177, 291180), (180, 286327), (207, 248980), (211, 244260), (230, 224082), (236, 218385), (276, 186735), (295, 174708), (345, 149388), (354, 145590), (414, 124490), (422, 122130), (460, 112041), (531, 97060), (590, 87354), (633, 81420), (690, 74694), (708, 72795), (828, 62245), (844, 61065), (885, 58236), (1035, 49796), (1055, 48852), (1062, 48530), (1180, 43677), (1266, 40710), (1357, 37980), (1380, 37347), (1770, 29118), (1899, 27140), (2070, 24898), (2110, 24426), (2124, 24265), (2532, 20355), (2655, 19412), (2714, 18990), (3165, 16284), (3540, 14559), (3798, 13570), (4071, 12660), (4140, 12449), (4220, 12213), (4853, 10620), (5310, 9706), (5428, 9495), (6330, 8142), (6785, 7596)]