20138940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2111}}^1$

素因数の和:2179

約数の個数: 72

約数和(自身を含む): 62270208

約数和(自身を除く): 42131268

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2111, 2385, 3180, 4222, 4770, 6333, 8444, 9540, 10555, 12666, 18999, 21110, 25332, 31665, 37998, 42220, 63330, 75996, 94995, 111883, 126660, 189990, 223766, 335649, 379980, 447532, 559415, 671298, 1006947, 1118830, 1342596, 1678245, 2013894, 2237660, 3356490, 4027788, 5034735, 6712980, 10069470, 20138940]

約数ペア:

[(1, 20138940), (2, 10069470), (3, 6712980), (4, 5034735), (5, 4027788), (6, 3356490), (9, 2237660), (10, 2013894), (12, 1678245), (15, 1342596), (18, 1118830), (20, 1006947), (30, 671298), (36, 559415), (45, 447532), (53, 379980), (60, 335649), (90, 223766), (106, 189990), (159, 126660), (180, 111883), (212, 94995), (265, 75996), (318, 63330), (477, 42220), (530, 37998), (636, 31665), (795, 25332), (954, 21110), (1060, 18999), (1590, 12666), (1908, 10555), (2111, 9540), (2385, 8444), (3180, 6333), (4222, 4770)]