18406680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{977}}^1$

素因数の和:1148

約数の個数: 64

約数和(自身を含む): 55628640

約数和(自身を除く): 37221960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 977, 1256, 1570, 1884, 1954, 2355, 2931, 3140, 3768, 3908, 4710, 4885, 5862, 6280, 7816, 9420, 9770, 11724, 14655, 18840, 19540, 23448, 29310, 39080, 58620, 117240, 153389, 306778, 460167, 613556, 766945, 920334, 1227112, 1533890, 1840668, 2300835, 3067780, 3681336, 4601670, 6135560, 9203340, 18406680]

約数ペア:

[(1, 18406680), (2, 9203340), (3, 6135560), (4, 4601670), (5, 3681336), (6, 3067780), (8, 2300835), (10, 1840668), (12, 1533890), (15, 1227112), (20, 920334), (24, 766945), (30, 613556), (40, 460167), (60, 306778), (120, 153389), (157, 117240), (314, 58620), (471, 39080), (628, 29310), (785, 23448), (942, 19540), (977, 18840), (1256, 14655), (1570, 11724), (1884, 9770), (1954, 9420), (2355, 7816), (2931, 6280), (3140, 5862), (3768, 4885), (3908, 4710)]