80843860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{2693}}^1$

素因数の和:2800

約数の個数: 48

約数和(自身を含む): 181036800

約数和(自身を除く): 100192940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 2693, 3002, 5386, 6004, 7505, 10772, 13465, 15010, 26930, 30020, 51167, 53860, 102334, 204668, 212747, 255835, 425494, 511670, 850988, 1023340, 1063735, 2127470, 4042193, 4254940, 8084386, 16168772, 20210965, 40421930, 80843860]

約数ペア:

[(1, 80843860), (2, 40421930), (4, 20210965), (5, 16168772), (10, 8084386), (19, 4254940), (20, 4042193), (38, 2127470), (76, 1063735), (79, 1023340), (95, 850988), (158, 511670), (190, 425494), (316, 255835), (380, 212747), (395, 204668), (790, 102334), (1501, 53860), (1580, 51167), (2693, 30020), (3002, 26930), (5386, 15010), (6004, 13465), (7505, 10772)]