20377630

素因数分解:

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

素因数の和:498

約数の個数: 64

約数和(自身を含む): 46166400

約数和(自身を除く): 25788770

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 343, 455, 457, 490, 637, 686, 910, 914, 1274, 1715, 2285, 3185, 3199, 3430, 4459, 4570, 5941, 6370, 6398, 8918, 11882, 15995, 22295, 22393, 29705, 31990, 41587, 44590, 44786, 59410, 83174, 111965, 156751, 207935, 223930, 291109, 313502, 415870, 582218, 783755, 1455545, 1567510, 2037763, 2911090, 4075526, 10188815, 20377630]

約数ペア:

[(1, 20377630), (2, 10188815), (5, 4075526), (7, 2911090), (10, 2037763), (13, 1567510), (14, 1455545), (26, 783755), (35, 582218), (49, 415870), (65, 313502), (70, 291109), (91, 223930), (98, 207935), (130, 156751), (182, 111965), (245, 83174), (343, 59410), (455, 44786), (457, 44590), (490, 41587), (637, 31990), (686, 29705), (910, 22393), (914, 22295), (1274, 15995), (1715, 11882), (2285, 8918), (3185, 6398), (3199, 6370), (3430, 5941), (4459, 4570)]