18788599980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{415861}}^1$

素因数の和:416127

約数の個数: 72

約数和(自身を含む): 57219284304

約数和(自身を除く): 38430684324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 251, 502, 753, 1004, 1255, 1506, 2259, 2510, 3012, 3765, 4518, 5020, 7530, 9036, 11295, 15060, 22590, 45180, 415861, 831722, 1247583, 1663444, 2079305, 2495166, 3742749, 4158610, 4990332, 6237915, 7485498, 8317220, 12475830, 14970996, 18713745, 24951660, 37427490, 74854980, 104381111, 208762222, 313143333, 417524444, 521905555, 626286666, 939429999, 1043811110, 1252573332, 1565716665, 1878859998, 2087622220, 3131433330, 3757719996, 4697149995, 6262866660, 9394299990, 18788599980]

約数ペア:

[(1, 18788599980), (2, 9394299990), (3, 6262866660), (4, 4697149995), (5, 3757719996), (6, 3131433330), (9, 2087622220), (10, 1878859998), (12, 1565716665), (15, 1252573332), (18, 1043811110), (20, 939429999), (30, 626286666), (36, 521905555), (45, 417524444), (60, 313143333), (90, 208762222), (180, 104381111), (251, 74854980), (502, 37427490), (753, 24951660), (1004, 18713745), (1255, 14970996), (1506, 12475830), (2259, 8317220), (2510, 7485498), (3012, 6237915), (3765, 4990332), (4518, 4158610), (5020, 3742749), (7530, 2495166), (9036, 2079305), (11295, 1663444), (15060, 1247583), (22590, 831722), (45180, 415861)]