51663820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1823}}^1$

素因数の和:1954

約数の個数: 48

約数和(自身を含む): 117976320

約数和(自身を除く): 66312500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 1823, 2180, 2834, 3646, 5668, 7085, 7292, 9115, 14170, 18230, 23699, 28340, 36460, 47398, 94796, 118495, 198707, 236990, 397414, 473980, 794828, 993535, 1987070, 2583191, 3974140, 5166382, 10332764, 12915955, 25831910, 51663820]

約数ペア:

[(1, 51663820), (2, 25831910), (4, 12915955), (5, 10332764), (10, 5166382), (13, 3974140), (20, 2583191), (26, 1987070), (52, 993535), (65, 794828), (109, 473980), (130, 397414), (218, 236990), (260, 198707), (436, 118495), (545, 94796), (1090, 47398), (1417, 36460), (1823, 28340), (2180, 23699), (2834, 18230), (3646, 14170), (5668, 9115), (7085, 7292)]