20444220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2143}}^1$

素因数の和:2211

約数の個数: 72

約数和(自身を含む): 63213696

約数和(自身を除く): 42769476

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, 2143, 2385, 3180, 4286, 4770, 6429, 8572, 9540, 10715, 12858, 19287, 21430, 25716, 32145, 38574, 42860, 64290, 77148, 96435, 113579, 128580, 192870, 227158, 340737, 385740, 454316, 567895, 681474, 1022211, 1135790, 1362948, 1703685, 2044422, 2271580, 3407370, 4088844, 5111055, 6814740, 10222110, 20444220]

約数ペア:

[(1, 20444220), (2, 10222110), (3, 6814740), (4, 5111055), (5, 4088844), (6, 3407370), (9, 2271580), (10, 2044422), (12, 1703685), (15, 1362948), (18, 1135790), (20, 1022211), (30, 681474), (36, 567895), (45, 454316), (53, 385740), (60, 340737), (90, 227158), (106, 192870), (159, 128580), (180, 113579), (212, 96435), (265, 77148), (318, 64290), (477, 42860), (530, 38574), (636, 32145), (795, 25716), (954, 21430), (1060, 19287), (1590, 12858), (1908, 10715), (2143, 9540), (2385, 8572), (3180, 6429), (4286, 4770)]