15999080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 37497600

約数和(自身を除く): 21498520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 79, 83, 122, 158, 166, 244, 305, 316, 332, 395, 415, 488, 610, 632, 664, 790, 830, 1220, 1580, 1660, 2440, 3160, 3320, 4819, 5063, 6557, 9638, 10126, 13114, 19276, 20252, 24095, 25315, 26228, 32785, 38552, 40504, 48190, 50630, 52456, 65570, 96380, 101260, 131140, 192760, 202520, 262280, 399977, 799954, 1599908, 1999885, 3199816, 3999770, 7999540, 15999080]

約数ペア:

[(1, 15999080), (2, 7999540), (4, 3999770), (5, 3199816), (8, 1999885), (10, 1599908), (20, 799954), (40, 399977), (61, 262280), (79, 202520), (83, 192760), (122, 131140), (158, 101260), (166, 96380), (244, 65570), (305, 52456), (316, 50630), (332, 48190), (395, 40504), (415, 38552), (488, 32785), (610, 26228), (632, 25315), (664, 24095), (790, 20252), (830, 19276), (1220, 13114), (1580, 10126), (1660, 9638), (2440, 6557), (3160, 5063), (3320, 4819)]