639641808

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{761}}^1$

素因数の和:1237

約数の個数: 120

約数和(自身を含む): 1934641800

約数和(自身を除く): 1294999992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 449, 468, 624, 761, 898, 936, 1347, 1522, 1796, 1872, 2283, 2694, 3044, 3592, 4041, 4566, 5388, 5837, 6088, 6849, 7184, 8082, 9132, 9893, 10776, 11674, 12176, 13698, 16164, 17511, 18264, 19786, 21552, 23348, 27396, 29679, 32328, 35022, 36528, 39572, 46696, 52533, 54792, 59358, 64656, 70044, 79144, 89037, 93392, 105066, 109584, 118716, 140088, 158288, 178074, 210132, 237432, 280176, 341689, 356148, 420264, 474864, 683378, 712296, 840528, 1025067, 1366756, 1424592, 2050134, 2733512, 3075201, 4100268, 4441957, 5467024, 6150402, 8200536, 8883914, 12300804, 13325871, 16401072, 17767828, 24601608, 26651742, 35535656, 39977613, 49203216, 53303484, 71071312, 79955226, 106606968, 159910452, 213213936, 319820904, 639641808]

約数ペア:

[(1, 639641808), (2, 319820904), (3, 213213936), (4, 159910452), (6, 106606968), (8, 79955226), (9, 71071312), (12, 53303484), (13, 49203216), (16, 39977613), (18, 35535656), (24, 26651742), (26, 24601608), (36, 17767828), (39, 16401072), (48, 13325871), (52, 12300804), (72, 8883914), (78, 8200536), (104, 6150402), (117, 5467024), (144, 4441957), (156, 4100268), (208, 3075201), (234, 2733512), (312, 2050134), (449, 1424592), (468, 1366756), (624, 1025067), (761, 840528), (898, 712296), (936, 683378), (1347, 474864), (1522, 420264), (1796, 356148), (1872, 341689), (2283, 280176), (2694, 237432), (3044, 210132), (3592, 178074), (4041, 158288), (4566, 140088), (5388, 118716), (5837, 109584), (6088, 105066), (6849, 93392), (7184, 89037), (8082, 79144), (9132, 70044), (9893, 64656), (10776, 59358), (11674, 54792), (12176, 52533), (13698, 46696), (16164, 39572), (17511, 36528), (18264, 35022), (19786, 32328), (21552, 29679), (23348, 27396)]