18504860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{233}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 44933616

約数和(自身を除く): 26428756

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 233, 361, 380, 418, 466, 722, 836, 932, 1045, 1165, 1444, 1805, 2090, 2330, 2563, 3610, 3971, 4180, 4427, 4660, 5126, 7220, 7942, 8854, 10252, 12815, 15884, 17708, 19855, 22135, 25630, 39710, 44270, 48697, 51260, 79420, 84113, 88540, 97394, 168226, 194788, 243485, 336452, 420565, 486970, 841130, 925243, 973940, 1682260, 1850486, 3700972, 4626215, 9252430, 18504860]

約数ペア:

[(1, 18504860), (2, 9252430), (4, 4626215), (5, 3700972), (10, 1850486), (11, 1682260), (19, 973940), (20, 925243), (22, 841130), (38, 486970), (44, 420565), (55, 336452), (76, 243485), (95, 194788), (110, 168226), (190, 97394), (209, 88540), (220, 84113), (233, 79420), (361, 51260), (380, 48697), (418, 44270), (466, 39710), (722, 25630), (836, 22135), (932, 19855), (1045, 17708), (1165, 15884), (1444, 12815), (1805, 10252), (2090, 8854), (2330, 7942), (2563, 7220), (3610, 5126), (3971, 4660), (4180, 4427)]