18967860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{631}}^1$

素因数の和:813

約数の個数: 72

約数和(自身を含む): 57972096

約数和(自身を除く): 39004236

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 167, 180, 334, 501, 631, 668, 835, 1002, 1262, 1503, 1670, 1893, 2004, 2505, 2524, 3006, 3155, 3340, 3786, 5010, 5679, 6012, 6310, 7515, 7572, 9465, 10020, 11358, 12620, 15030, 18930, 22716, 28395, 30060, 37860, 56790, 105377, 113580, 210754, 316131, 421508, 526885, 632262, 948393, 1053770, 1264524, 1580655, 1896786, 2107540, 3161310, 3793572, 4741965, 6322620, 9483930, 18967860]

約数ペア:

[(1, 18967860), (2, 9483930), (3, 6322620), (4, 4741965), (5, 3793572), (6, 3161310), (9, 2107540), (10, 1896786), (12, 1580655), (15, 1264524), (18, 1053770), (20, 948393), (30, 632262), (36, 526885), (45, 421508), (60, 316131), (90, 210754), (167, 113580), (180, 105377), (334, 56790), (501, 37860), (631, 30060), (668, 28395), (835, 22716), (1002, 18930), (1262, 15030), (1503, 12620), (1670, 11358), (1893, 10020), (2004, 9465), (2505, 7572), (2524, 7515), (3006, 6310), (3155, 6012), (3340, 5679), (3786, 5010)]