141520

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:103

約数の個数: 40

約数和(自身を含む): 345960

約数和(自身を除く): 204440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 61, 80, 116, 122, 145, 232, 244, 290, 305, 464, 488, 580, 610, 976, 1160, 1220, 1769, 2320, 2440, 3538, 4880, 7076, 8845, 14152, 17690, 28304, 35380, 70760, 141520]

約数ペア:

[(1, 141520), (2, 70760), (4, 35380), (5, 28304), (8, 17690), (10, 14152), (16, 8845), (20, 7076), (29, 4880), (40, 3538), (58, 2440), (61, 2320), (80, 1769), (116, 1220), (122, 1160), (145, 976), (232, 610), (244, 580), (290, 488), (305, 464)]