15991380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1217}}^1$

素因数の和:1305

約数の個数: 72

約数和(自身を含む): 49212072

約数和(自身を除く): 33220692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 292, 365, 438, 657, 730, 876, 1095, 1217, 1314, 1460, 2190, 2434, 2628, 3285, 3651, 4380, 4868, 6085, 6570, 7302, 10953, 12170, 13140, 14604, 18255, 21906, 24340, 36510, 43812, 54765, 73020, 88841, 109530, 177682, 219060, 266523, 355364, 444205, 533046, 799569, 888410, 1066092, 1332615, 1599138, 1776820, 2665230, 3198276, 3997845, 5330460, 7995690, 15991380]

約数ペア:

[(1, 15991380), (2, 7995690), (3, 5330460), (4, 3997845), (5, 3198276), (6, 2665230), (9, 1776820), (10, 1599138), (12, 1332615), (15, 1066092), (18, 888410), (20, 799569), (30, 533046), (36, 444205), (45, 355364), (60, 266523), (73, 219060), (90, 177682), (146, 109530), (180, 88841), (219, 73020), (292, 54765), (365, 43812), (438, 36510), (657, 24340), (730, 21906), (876, 18255), (1095, 14604), (1217, 13140), (1314, 12170), (1460, 10953), (2190, 7302), (2434, 6570), (2628, 6085), (3285, 4868), (3651, 4380)]