77889920

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7159}}^1$

素因数の和:7195

約数の個数: 64

約数和(自身を含む): 197186400

約数和(自身を除く): 119296480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2720, 5440, 7159, 10880, 14318, 28636, 35795, 57272, 71590, 114544, 121703, 143180, 229088, 243406, 286360, 458176, 486812, 572720, 608515, 916352, 973624, 1145440, 1217030, 1947248, 2290880, 2434060, 3894496, 4581760, 4868120, 7788992, 9736240, 15577984, 19472480, 38944960, 77889920]

約数ペア:

[(1, 77889920), (2, 38944960), (4, 19472480), (5, 15577984), (8, 9736240), (10, 7788992), (16, 4868120), (17, 4581760), (20, 3894496), (32, 2434060), (34, 2290880), (40, 1947248), (64, 1217030), (68, 1145440), (80, 973624), (85, 916352), (128, 608515), (136, 572720), (160, 486812), (170, 458176), (272, 286360), (320, 243406), (340, 229088), (544, 143180), (640, 121703), (680, 114544), (1088, 71590), (1360, 57272), (2176, 35795), (2720, 28636), (5440, 14318), (7159, 10880)]