18860280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2153}}^1$

素因数の和:2240

約数の個数: 64

約数和(自身を含む): 57382560

約数和(自身を除く): 38522280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 219, 292, 365, 438, 584, 730, 876, 1095, 1460, 1752, 2153, 2190, 2920, 4306, 4380, 6459, 8612, 8760, 10765, 12918, 17224, 21530, 25836, 32295, 43060, 51672, 64590, 86120, 129180, 157169, 258360, 314338, 471507, 628676, 785845, 943014, 1257352, 1571690, 1886028, 2357535, 3143380, 3772056, 4715070, 6286760, 9430140, 18860280]

約数ペア:

[(1, 18860280), (2, 9430140), (3, 6286760), (4, 4715070), (5, 3772056), (6, 3143380), (8, 2357535), (10, 1886028), (12, 1571690), (15, 1257352), (20, 943014), (24, 785845), (30, 628676), (40, 471507), (60, 314338), (73, 258360), (120, 157169), (146, 129180), (219, 86120), (292, 64590), (365, 51672), (438, 43060), (584, 32295), (730, 25836), (876, 21530), (1095, 17224), (1460, 12918), (1752, 10765), (2153, 8760), (2190, 8612), (2920, 6459), (4306, 4380)]