278301920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1997}}^1$

素因数の和:2092

約数の個数: 96

約数和(自身を含む): 718992288

約数和(自身を除く): 440690368

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 67, 80, 104, 130, 134, 160, 208, 260, 268, 335, 416, 520, 536, 670, 871, 1040, 1072, 1340, 1742, 1997, 2080, 2144, 2680, 3484, 3994, 4355, 5360, 6968, 7988, 8710, 9985, 10720, 13936, 15976, 17420, 19970, 25961, 27872, 31952, 34840, 39940, 51922, 63904, 69680, 79880, 103844, 129805, 133799, 139360, 159760, 207688, 259610, 267598, 319520, 415376, 519220, 535196, 668995, 830752, 1038440, 1070392, 1337990, 1739387, 2076880, 2140784, 2675980, 3478774, 4153760, 4281568, 5351960, 6957548, 8696935, 10703920, 13915096, 17393870, 21407840, 27830192, 34787740, 55660384, 69575480, 139150960, 278301920]

約数ペア:

[(1, 278301920), (2, 139150960), (4, 69575480), (5, 55660384), (8, 34787740), (10, 27830192), (13, 21407840), (16, 17393870), (20, 13915096), (26, 10703920), (32, 8696935), (40, 6957548), (52, 5351960), (65, 4281568), (67, 4153760), (80, 3478774), (104, 2675980), (130, 2140784), (134, 2076880), (160, 1739387), (208, 1337990), (260, 1070392), (268, 1038440), (335, 830752), (416, 668995), (520, 535196), (536, 519220), (670, 415376), (871, 319520), (1040, 267598), (1072, 259610), (1340, 207688), (1742, 159760), (1997, 139360), (2080, 133799), (2144, 129805), (2680, 103844), (3484, 79880), (3994, 69680), (4355, 63904), (5360, 51922), (6968, 39940), (7988, 34840), (8710, 31952), (9985, 27872), (10720, 25961), (13936, 19970), (15976, 17420)]