65408080

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{12203}}^1$

素因数の和:12283

約数の個数: 40

約数和(自身を含む): 154356192

約数和(自身を除く): 88948112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 12203, 24406, 48812, 61015, 97624, 122030, 195248, 244060, 488120, 817601, 976240, 1635202, 3270404, 4088005, 6540808, 8176010, 13081616, 16352020, 32704040, 65408080]

約数ペア:

[(1, 65408080), (2, 32704040), (4, 16352020), (5, 13081616), (8, 8176010), (10, 6540808), (16, 4088005), (20, 3270404), (40, 1635202), (67, 976240), (80, 817601), (134, 488120), (268, 244060), (335, 195248), (536, 122030), (670, 97624), (1072, 61015), (1340, 48812), (2680, 24406), (5360, 12203)]