69421820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:124

約数の個数: 144

約数和(自身を含む): 177085440

約数和(自身を除く): 107663620

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 23, 26, 38, 46, 47, 52, 65, 76, 92, 94, 95, 115, 130, 169, 188, 190, 230, 235, 247, 260, 299, 338, 380, 437, 460, 470, 494, 598, 611, 676, 845, 874, 893, 940, 988, 1081, 1196, 1222, 1235, 1495, 1690, 1748, 1786, 2162, 2185, 2444, 2470, 2990, 3055, 3211, 3380, 3572, 3887, 4324, 4370, 4465, 4940, 5405, 5681, 5980, 6110, 6422, 7774, 7943, 8740, 8930, 10810, 11362, 11609, 12220, 12844, 14053, 15548, 15886, 16055, 17860, 19435, 20539, 21620, 22724, 23218, 28106, 28405, 31772, 32110, 38870, 39715, 41078, 46436, 56212, 56810, 58045, 64220, 70265, 73853, 77740, 79430, 82156, 102695, 113620, 116090, 140530, 147706, 150917, 158860, 182689, 205390, 232180, 267007, 281060, 295412, 301834, 365378, 369265, 410780, 534014, 603668, 730756, 738530, 754585, 913445, 1068028, 1335035, 1477060, 1509170, 1826890, 2670070, 3018340, 3471091, 3653780, 5340140, 6942182, 13884364, 17355455, 34710910, 69421820]

約数ペア:

[(1, 69421820), (2, 34710910), (4, 17355455), (5, 13884364), (10, 6942182), (13, 5340140), (19, 3653780), (20, 3471091), (23, 3018340), (26, 2670070), (38, 1826890), (46, 1509170), (47, 1477060), (52, 1335035), (65, 1068028), (76, 913445), (92, 754585), (94, 738530), (95, 730756), (115, 603668), (130, 534014), (169, 410780), (188, 369265), (190, 365378), (230, 301834), (235, 295412), (247, 281060), (260, 267007), (299, 232180), (338, 205390), (380, 182689), (437, 158860), (460, 150917), (470, 147706), (494, 140530), (598, 116090), (611, 113620), (676, 102695), (845, 82156), (874, 79430), (893, 77740), (940, 73853), (988, 70265), (1081, 64220), (1196, 58045), (1222, 56810), (1235, 56212), (1495, 46436), (1690, 41078), (1748, 39715), (1786, 38870), (2162, 32110), (2185, 31772), (2444, 28405), (2470, 28106), (2990, 23218), (3055, 22724), (3211, 21620), (3380, 20539), (3572, 19435), (3887, 17860), (4324, 16055), (4370, 15886), (4465, 15548), (4940, 14053), (5405, 12844), (5681, 12220), (5980, 11609), (6110, 11362), (6422, 10810), (7774, 8930), (7943, 8740)]