161353980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6449}}^1$

素因数の和:6603

約数の個数: 72

約数和(自身を含む): 493038000

約数和(自身を除く): 331684020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 4170, 5004, 6255, 6449, 8340, 12510, 12898, 19347, 25020, 25796, 32245, 38694, 58041, 64490, 77388, 96735, 116082, 128980, 193470, 232164, 290205, 386940, 580410, 896411, 1160820, 1792822, 2689233, 3585644, 4482055, 5378466, 8067699, 8964110, 10756932, 13446165, 16135398, 17928220, 26892330, 32270796, 40338495, 53784660, 80676990, 161353980]

約数ペア:

[(1, 161353980), (2, 80676990), (3, 53784660), (4, 40338495), (5, 32270796), (6, 26892330), (9, 17928220), (10, 16135398), (12, 13446165), (15, 10756932), (18, 8964110), (20, 8067699), (30, 5378466), (36, 4482055), (45, 3585644), (60, 2689233), (90, 1792822), (139, 1160820), (180, 896411), (278, 580410), (417, 386940), (556, 290205), (695, 232164), (834, 193470), (1251, 128980), (1390, 116082), (1668, 96735), (2085, 77388), (2502, 64490), (2780, 58041), (4170, 38694), (5004, 32245), (6255, 25796), (6449, 25020), (8340, 19347), (12510, 12898)]