18128820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4139}}^1$

素因数の和:4224

約数の個数: 48

約数和(自身を含む): 51468480

約数和(自身を除く): 33339660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4139, 4380, 8278, 12417, 16556, 20695, 24834, 41390, 49668, 62085, 82780, 124170, 248340, 302147, 604294, 906441, 1208588, 1510735, 1812882, 3021470, 3625764, 4532205, 6042940, 9064410, 18128820]

約数ペア:

[(1, 18128820), (2, 9064410), (3, 6042940), (4, 4532205), (5, 3625764), (6, 3021470), (10, 1812882), (12, 1510735), (15, 1208588), (20, 906441), (30, 604294), (60, 302147), (73, 248340), (146, 124170), (219, 82780), (292, 62085), (365, 49668), (438, 41390), (730, 24834), (876, 20695), (1095, 16556), (1460, 12417), (2190, 8278), (4139, 4380)]