20629280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1$

素因数の和:298

約数の個数: 96

約数和(自身を含む): 56536704

約数和(自身を除く): 35907424

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 113, 140, 160, 163, 224, 226, 280, 326, 452, 560, 565, 652, 791, 815, 904, 1120, 1130, 1141, 1304, 1582, 1630, 1808, 2260, 2282, 2608, 3164, 3260, 3616, 3955, 4520, 4564, 5216, 5705, 6328, 6520, 7910, 9040, 9128, 11410, 12656, 13040, 15820, 18080, 18256, 18419, 22820, 25312, 26080, 31640, 36512, 36838, 45640, 63280, 73676, 91280, 92095, 126560, 128933, 147352, 182560, 184190, 257866, 294704, 368380, 515732, 589408, 644665, 736760, 1031464, 1289330, 1473520, 2062928, 2578660, 2947040, 4125856, 5157320, 10314640, 20629280]

約数ペア:

[(1, 20629280), (2, 10314640), (4, 5157320), (5, 4125856), (7, 2947040), (8, 2578660), (10, 2062928), (14, 1473520), (16, 1289330), (20, 1031464), (28, 736760), (32, 644665), (35, 589408), (40, 515732), (56, 368380), (70, 294704), (80, 257866), (112, 184190), (113, 182560), (140, 147352), (160, 128933), (163, 126560), (224, 92095), (226, 91280), (280, 73676), (326, 63280), (452, 45640), (560, 36838), (565, 36512), (652, 31640), (791, 26080), (815, 25312), (904, 22820), (1120, 18419), (1130, 18256), (1141, 18080), (1304, 15820), (1582, 13040), (1630, 12656), (1808, 11410), (2260, 9128), (2282, 9040), (2608, 7910), (3164, 6520), (3260, 6328), (3616, 5705), (3955, 5216), (4520, 4564)]