20793500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1$

素因数の和:496

約数の個数: 96

約数和(自身を含む): 56015232

約数和(自身を除く): 35221732

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 125, 130, 140, 175, 182, 250, 260, 325, 350, 364, 455, 457, 500, 650, 700, 875, 910, 914, 1300, 1625, 1750, 1820, 1828, 2275, 2285, 3199, 3250, 3500, 4550, 4570, 5941, 6398, 6500, 9100, 9140, 11375, 11425, 11882, 12796, 15995, 22750, 22850, 23764, 29705, 31990, 41587, 45500, 45700, 57125, 59410, 63980, 79975, 83174, 114250, 118820, 148525, 159950, 166348, 207935, 228500, 297050, 319900, 399875, 415870, 594100, 742625, 799750, 831740, 1039675, 1485250, 1599500, 2079350, 2970500, 4158700, 5198375, 10396750, 20793500]

約数ペア:

[(1, 20793500), (2, 10396750), (4, 5198375), (5, 4158700), (7, 2970500), (10, 2079350), (13, 1599500), (14, 1485250), (20, 1039675), (25, 831740), (26, 799750), (28, 742625), (35, 594100), (50, 415870), (52, 399875), (65, 319900), (70, 297050), (91, 228500), (100, 207935), (125, 166348), (130, 159950), (140, 148525), (175, 118820), (182, 114250), (250, 83174), (260, 79975), (325, 63980), (350, 59410), (364, 57125), (455, 45700), (457, 45500), (500, 41587), (650, 31990), (700, 29705), (875, 23764), (910, 22850), (914, 22750), (1300, 15995), (1625, 12796), (1750, 11882), (1820, 11425), (1828, 11375), (2275, 9140), (2285, 9100), (3199, 6500), (3250, 6398), (3500, 5941), (4550, 4570)]