28284360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18131}}^1$

素因数の和:18158

約数の個数: 64

約数和(自身を含む): 91385280

約数和(自身を除く): 63100920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 18131, 36262, 54393, 72524, 90655, 108786, 145048, 181310, 217572, 235703, 271965, 362620, 435144, 471406, 543930, 707109, 725240, 942812, 1087860, 1178515, 1414218, 1885624, 2175720, 2357030, 2828436, 3535545, 4714060, 5656872, 7071090, 9428120, 14142180, 28284360]

約数ペア:

[(1, 28284360), (2, 14142180), (3, 9428120), (4, 7071090), (5, 5656872), (6, 4714060), (8, 3535545), (10, 2828436), (12, 2357030), (13, 2175720), (15, 1885624), (20, 1414218), (24, 1178515), (26, 1087860), (30, 942812), (39, 725240), (40, 707109), (52, 543930), (60, 471406), (65, 435144), (78, 362620), (104, 271965), (120, 235703), (130, 217572), (156, 181310), (195, 145048), (260, 108786), (312, 90655), (390, 72524), (520, 54393), (780, 36262), (1560, 18131)]