18308140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 40007520

約数和(自身を除く): 21699380

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 83, 164, 166, 205, 269, 332, 410, 415, 538, 820, 830, 1076, 1345, 1660, 2690, 3403, 5380, 6806, 11029, 13612, 17015, 22058, 22327, 34030, 44116, 44654, 55145, 68060, 89308, 110290, 111635, 220580, 223270, 446540, 915407, 1830814, 3661628, 4577035, 9154070, 18308140]

約数ペア:

[(1, 18308140), (2, 9154070), (4, 4577035), (5, 3661628), (10, 1830814), (20, 915407), (41, 446540), (82, 223270), (83, 220580), (164, 111635), (166, 110290), (205, 89308), (269, 68060), (332, 55145), (410, 44654), (415, 44116), (538, 34030), (820, 22327), (830, 22058), (1076, 17015), (1345, 13612), (1660, 11029), (2690, 6806), (3403, 5380)]