18107880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{21557}}^1$

素因数の和:21578

約数の個数: 64

約数和(自身を含む): 62087040

約数和(自身を除く): 43979160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 21557, 43114, 64671, 86228, 107785, 129342, 150899, 172456, 215570, 258684, 301798, 323355, 431140, 452697, 517368, 603596, 646710, 754495, 862280, 905394, 1207192, 1293420, 1508990, 1810788, 2263485, 2586840, 3017980, 3621576, 4526970, 6035960, 9053940, 18107880]

約数ペア:

[(1, 18107880), (2, 9053940), (3, 6035960), (4, 4526970), (5, 3621576), (6, 3017980), (7, 2586840), (8, 2263485), (10, 1810788), (12, 1508990), (14, 1293420), (15, 1207192), (20, 905394), (21, 862280), (24, 754495), (28, 646710), (30, 603596), (35, 517368), (40, 452697), (42, 431140), (56, 323355), (60, 301798), (70, 258684), (84, 215570), (105, 172456), (120, 150899), (140, 129342), (168, 107785), (210, 86228), (280, 64671), (420, 43114), (840, 21557)]