20574015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{379}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 21450945

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 47, 55, 77, 105, 141, 165, 231, 235, 329, 379, 385, 517, 705, 987, 1137, 1155, 1551, 1645, 1895, 2585, 2653, 3619, 4169, 4935, 5685, 7755, 7959, 10857, 12507, 13265, 17813, 18095, 20845, 29183, 39795, 53439, 54285, 62535, 87549, 89065, 124691, 145915, 195943, 267195, 374073, 437745, 587829, 623455, 979715, 1371601, 1870365, 2939145, 4114803, 6858005, 20574015]

約数ペア:

[(1, 20574015), (3, 6858005), (5, 4114803), (7, 2939145), (11, 1870365), (15, 1371601), (21, 979715), (33, 623455), (35, 587829), (47, 437745), (55, 374073), (77, 267195), (105, 195943), (141, 145915), (165, 124691), (231, 89065), (235, 87549), (329, 62535), (379, 54285), (385, 53439), (517, 39795), (705, 29183), (987, 20845), (1137, 18095), (1155, 17813), (1551, 13265), (1645, 12507), (1895, 10857), (2585, 7959), (2653, 7755), (3619, 5685), (4169, 4935)]