20115550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4421}}^1$

素因数の和:4453

約数の個数: 48

約数和(自身を含む): 46059552

約数和(自身を除く): 25944002

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4421, 4550, 8842, 22105, 30947, 44210, 57473, 61894, 110525, 114946, 154735, 221050, 287365, 309470, 402311, 574730, 773675, 804622, 1436825, 1547350, 2011555, 2873650, 4023110, 10057775, 20115550]

約数ペア:

[(1, 20115550), (2, 10057775), (5, 4023110), (7, 2873650), (10, 2011555), (13, 1547350), (14, 1436825), (25, 804622), (26, 773675), (35, 574730), (50, 402311), (65, 309470), (70, 287365), (91, 221050), (130, 154735), (175, 114946), (182, 110525), (325, 61894), (350, 57473), (455, 44210), (650, 30947), (910, 22105), (2275, 8842), (4421, 4550)]