3951580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 8749440

約数和(自身を除く): 4797860

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 79, 82, 122, 158, 164, 205, 244, 305, 316, 395, 410, 610, 790, 820, 1220, 1580, 2501, 3239, 4819, 5002, 6478, 9638, 10004, 12505, 12956, 16195, 19276, 24095, 25010, 32390, 48190, 50020, 64780, 96380, 197579, 395158, 790316, 987895, 1975790, 3951580]

約数ペア:

[(1, 3951580), (2, 1975790), (4, 987895), (5, 790316), (10, 395158), (20, 197579), (41, 96380), (61, 64780), (79, 50020), (82, 48190), (122, 32390), (158, 25010), (164, 24095), (205, 19276), (244, 16195), (305, 12956), (316, 12505), (395, 10004), (410, 9638), (610, 6478), (790, 5002), (820, 4819), (1220, 3239), (1580, 2501)]