138775960

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{761}}^1$

素因数の和:916

約数の個数: 64

約数和(自身を含む): 322600320

約数和(自身を除く): 183824360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 97, 188, 194, 235, 376, 388, 470, 485, 761, 776, 940, 970, 1522, 1880, 1940, 3044, 3805, 3880, 4559, 6088, 7610, 9118, 15220, 18236, 22795, 30440, 35767, 36472, 45590, 71534, 73817, 91180, 143068, 147634, 178835, 182360, 286136, 295268, 357670, 369085, 590536, 715340, 738170, 1430680, 1476340, 2952680, 3469399, 6938798, 13877596, 17346995, 27755192, 34693990, 69387980, 138775960]

約数ペア:

[(1, 138775960), (2, 69387980), (4, 34693990), (5, 27755192), (8, 17346995), (10, 13877596), (20, 6938798), (40, 3469399), (47, 2952680), (94, 1476340), (97, 1430680), (188, 738170), (194, 715340), (235, 590536), (376, 369085), (388, 357670), (470, 295268), (485, 286136), (761, 182360), (776, 178835), (940, 147634), (970, 143068), (1522, 91180), (1880, 73817), (1940, 71534), (3044, 45590), (3805, 36472), (3880, 35767), (4559, 30440), (6088, 22795), (7610, 18236), (9118, 15220)]