388602920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{1123}}^1$

素因数の和:1386

約数の個数: 64

約数和(自身を含む): 900728640

約数和(自身を除く): 512125720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 211, 328, 410, 422, 820, 844, 1055, 1123, 1640, 1688, 2110, 2246, 4220, 4492, 5615, 8440, 8651, 8984, 11230, 17302, 22460, 34604, 43255, 44920, 46043, 69208, 86510, 92086, 173020, 184172, 230215, 236953, 346040, 368344, 460430, 473906, 920860, 947812, 1184765, 1841720, 1895624, 2369530, 4739060, 9478120, 9715073, 19430146, 38860292, 48575365, 77720584, 97150730, 194301460, 388602920]

約数ペア:

[(1, 388602920), (2, 194301460), (4, 97150730), (5, 77720584), (8, 48575365), (10, 38860292), (20, 19430146), (40, 9715073), (41, 9478120), (82, 4739060), (164, 2369530), (205, 1895624), (211, 1841720), (328, 1184765), (410, 947812), (422, 920860), (820, 473906), (844, 460430), (1055, 368344), (1123, 346040), (1640, 236953), (1688, 230215), (2110, 184172), (2246, 173020), (4220, 92086), (4492, 86510), (5615, 69208), (8440, 46043), (8651, 44920), (8984, 43255), (11230, 34604), (17302, 22460)]