20064608

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{541}}^1$

素因数の和:631

約数の個数: 48

約数和(自身を含む): 42341040

約数和(自身を除く): 22276432

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 61, 76, 122, 152, 244, 304, 488, 541, 608, 976, 1082, 1159, 1952, 2164, 2318, 4328, 4636, 8656, 9272, 10279, 17312, 18544, 20558, 33001, 37088, 41116, 66002, 82232, 132004, 164464, 264008, 328928, 528016, 627019, 1056032, 1254038, 2508076, 5016152, 10032304, 20064608]

約数ペア:

[(1, 20064608), (2, 10032304), (4, 5016152), (8, 2508076), (16, 1254038), (19, 1056032), (32, 627019), (38, 528016), (61, 328928), (76, 264008), (122, 164464), (152, 132004), (244, 82232), (304, 66002), (488, 41116), (541, 37088), (608, 33001), (976, 20558), (1082, 18544), (1159, 17312), (1952, 10279), (2164, 9272), (2318, 8656), (4328, 4636)]