2019941480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{811}}^1\times {\mathrm{877}}^1$

素因数の和:1770

約数の個数: 64

約数和(自身を含む): 4619825280

約数和(自身を除く): 2599883800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 811, 877, 1420, 1622, 1754, 2840, 3244, 3508, 4055, 4385, 6488, 7016, 8110, 8770, 16220, 17540, 32440, 35080, 57581, 62267, 115162, 124534, 230324, 249068, 287905, 311335, 460648, 498136, 575810, 622670, 711247, 1151620, 1245340, 1422494, 2303240, 2490680, 2844988, 3556235, 5689976, 7112470, 14224940, 28449880, 50498537, 100997074, 201994148, 252492685, 403988296, 504985370, 1009970740, 2019941480]

約数ペア:

[(1, 2019941480), (2, 1009970740), (4, 504985370), (5, 403988296), (8, 252492685), (10, 201994148), (20, 100997074), (40, 50498537), (71, 28449880), (142, 14224940), (284, 7112470), (355, 5689976), (568, 3556235), (710, 2844988), (811, 2490680), (877, 2303240), (1420, 1422494), (1622, 1245340), (1754, 1151620), (2840, 711247), (3244, 622670), (3508, 575810), (4055, 498136), (4385, 460648), (6488, 311335), (7016, 287905), (8110, 249068), (8770, 230324), (16220, 124534), (17540, 115162), (32440, 62267), (35080, 57581)]