87120040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{44449}}^1$

素因数の和:44474

約数の個数: 48

約数和(自身を含む): 228028500

約数和(自身を除く): 140908460

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 44449, 88898, 177796, 222245, 311143, 355592, 444490, 622286, 888980, 1244572, 1555715, 1777960, 2178001, 2489144, 3111430, 4356002, 6222860, 8712004, 10890005, 12445720, 17424008, 21780010, 43560020, 87120040]

約数ペア:

[(1, 87120040), (2, 43560020), (4, 21780010), (5, 17424008), (7, 12445720), (8, 10890005), (10, 8712004), (14, 6222860), (20, 4356002), (28, 3111430), (35, 2489144), (40, 2178001), (49, 1777960), (56, 1555715), (70, 1244572), (98, 888980), (140, 622286), (196, 444490), (245, 355592), (280, 311143), (392, 222245), (490, 177796), (980, 88898), (1960, 44449)]