20723552

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{761}}^1$

素因数の和:831

約数の個数: 48

約数和(自身を含む): 43781472

約数和(自身を除く): 23057920

約数列:

[1, 2, 4, 8, 16, 23, 32, 37, 46, 74, 92, 148, 184, 296, 368, 592, 736, 761, 851, 1184, 1522, 1702, 3044, 3404, 6088, 6808, 12176, 13616, 17503, 24352, 27232, 28157, 35006, 56314, 70012, 112628, 140024, 225256, 280048, 450512, 560096, 647611, 901024, 1295222, 2590444, 5180888, 10361776, 20723552]

約数ペア:

[(1, 20723552), (2, 10361776), (4, 5180888), (8, 2590444), (16, 1295222), (23, 901024), (32, 647611), (37, 560096), (46, 450512), (74, 280048), (92, 225256), (148, 140024), (184, 112628), (296, 70012), (368, 56314), (592, 35006), (736, 28157), (761, 27232), (851, 24352), (1184, 17503), (1522, 13616), (1702, 12176), (3044, 6808), (3404, 6088)]