79899020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{829}}^1$

素因数の和:978

約数の個数: 48

約数和(自身を含む): 172905600

約数和(自身を除く): 93006580

約数列:

[1, 2, 4, 5, 10, 20, 61, 79, 122, 158, 244, 305, 316, 395, 610, 790, 829, 1220, 1580, 1658, 3316, 4145, 4819, 8290, 9638, 16580, 19276, 24095, 48190, 50569, 65491, 96380, 101138, 130982, 202276, 252845, 261964, 327455, 505690, 654910, 1011380, 1309820, 3994951, 7989902, 15979804, 19974755, 39949510, 79899020]

約数ペア:

[(1, 79899020), (2, 39949510), (4, 19974755), (5, 15979804), (10, 7989902), (20, 3994951), (61, 1309820), (79, 1011380), (122, 654910), (158, 505690), (244, 327455), (305, 261964), (316, 252845), (395, 202276), (610, 130982), (790, 101138), (829, 96380), (1220, 65491), (1580, 50569), (1658, 48190), (3316, 24095), (4145, 19276), (4819, 16580), (8290, 9638)]