19653920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{859}}^1$

素因数の和:898

約数の個数: 96

約数和(自身を含む): 54613440

約数和(自身を除く): 34959520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 352, 416, 440, 520, 572, 715, 859, 880, 1040, 1144, 1430, 1718, 1760, 2080, 2288, 2860, 3436, 4295, 4576, 5720, 6872, 8590, 9449, 11167, 11440, 13744, 17180, 18898, 22334, 22880, 27488, 34360, 37796, 44668, 47245, 55835, 68720, 75592, 89336, 94490, 111670, 122837, 137440, 151184, 178672, 188980, 223340, 245674, 302368, 357344, 377960, 446680, 491348, 614185, 755920, 893360, 982696, 1228370, 1511840, 1786720, 1965392, 2456740, 3930784, 4913480, 9826960, 19653920]

約数ペア:

[(1, 19653920), (2, 9826960), (4, 4913480), (5, 3930784), (8, 2456740), (10, 1965392), (11, 1786720), (13, 1511840), (16, 1228370), (20, 982696), (22, 893360), (26, 755920), (32, 614185), (40, 491348), (44, 446680), (52, 377960), (55, 357344), (65, 302368), (80, 245674), (88, 223340), (104, 188980), (110, 178672), (130, 151184), (143, 137440), (160, 122837), (176, 111670), (208, 94490), (220, 89336), (260, 75592), (286, 68720), (352, 55835), (416, 47245), (440, 44668), (520, 37796), (572, 34360), (715, 27488), (859, 22880), (880, 22334), (1040, 18898), (1144, 17180), (1430, 13744), (1718, 11440), (1760, 11167), (2080, 9449), (2288, 8590), (2860, 6872), (3436, 5720), (4295, 4576)]