79127980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{821}}^1$

素因数の和:970

約数の個数: 48

約数和(自身を含む): 171239040

約数和(自身を除く): 92111060

約数列:

[1, 2, 4, 5, 10, 20, 61, 79, 122, 158, 244, 305, 316, 395, 610, 790, 821, 1220, 1580, 1642, 3284, 4105, 4819, 8210, 9638, 16420, 19276, 24095, 48190, 50081, 64859, 96380, 100162, 129718, 200324, 250405, 259436, 324295, 500810, 648590, 1001620, 1297180, 3956399, 7912798, 15825596, 19781995, 39563990, 79127980]

約数ペア:

[(1, 79127980), (2, 39563990), (4, 19781995), (5, 15825596), (10, 7912798), (20, 3956399), (61, 1297180), (79, 1001620), (122, 648590), (158, 500810), (244, 324295), (305, 259436), (316, 250405), (395, 200324), (610, 129718), (790, 100162), (821, 96380), (1220, 64859), (1580, 50081), (1642, 48190), (3284, 24095), (4105, 19276), (4819, 16420), (8210, 9638)]