77020520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{991}}^1$

素因数の和:1098

約数の個数: 64

約数和(自身を含む): 182131200

約数和(自身を除く): 105110680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 67, 116, 134, 145, 232, 268, 290, 335, 536, 580, 670, 991, 1160, 1340, 1943, 1982, 2680, 3886, 3964, 4955, 7772, 7928, 9715, 9910, 15544, 19430, 19820, 28739, 38860, 39640, 57478, 66397, 77720, 114956, 132794, 143695, 229912, 265588, 287390, 331985, 531176, 574780, 663970, 1149560, 1327940, 1925513, 2655880, 3851026, 7702052, 9627565, 15404104, 19255130, 38510260, 77020520]

約数ペア:

[(1, 77020520), (2, 38510260), (4, 19255130), (5, 15404104), (8, 9627565), (10, 7702052), (20, 3851026), (29, 2655880), (40, 1925513), (58, 1327940), (67, 1149560), (116, 663970), (134, 574780), (145, 531176), (232, 331985), (268, 287390), (290, 265588), (335, 229912), (536, 143695), (580, 132794), (670, 114956), (991, 77720), (1160, 66397), (1340, 57478), (1943, 39640), (1982, 38860), (2680, 28739), (3886, 19820), (3964, 19430), (4955, 15544), (7772, 9910), (7928, 9715)]