1996280020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{877}}^1$

素因数の和:1193

約数の個数: 96

約数和(自身を含む): 4885332480

約数和(自身を除く): 2889052460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 229, 284, 355, 458, 497, 710, 877, 916, 994, 1145, 1420, 1603, 1754, 1988, 2290, 2485, 3206, 3508, 4385, 4580, 4970, 6139, 6412, 8015, 8770, 9940, 12278, 16030, 16259, 17540, 24556, 30695, 32060, 32518, 61390, 62267, 65036, 81295, 113813, 122780, 124534, 162590, 200833, 227626, 249068, 311335, 325180, 401666, 435869, 455252, 569065, 622670, 803332, 871738, 1004165, 1138130, 1245340, 1405831, 1743476, 2008330, 2179345, 2276260, 2811662, 4016660, 4358690, 5623324, 7029155, 8717380, 14058310, 14259143, 28116620, 28518286, 57036572, 71295715, 99814001, 142591430, 199628002, 285182860, 399256004, 499070005, 998140010, 1996280020]

約数ペア:

[(1, 1996280020), (2, 998140010), (4, 499070005), (5, 399256004), (7, 285182860), (10, 199628002), (14, 142591430), (20, 99814001), (28, 71295715), (35, 57036572), (70, 28518286), (71, 28116620), (140, 14259143), (142, 14058310), (229, 8717380), (284, 7029155), (355, 5623324), (458, 4358690), (497, 4016660), (710, 2811662), (877, 2276260), (916, 2179345), (994, 2008330), (1145, 1743476), (1420, 1405831), (1603, 1245340), (1754, 1138130), (1988, 1004165), (2290, 871738), (2485, 803332), (3206, 622670), (3508, 569065), (4385, 455252), (4580, 435869), (4970, 401666), (6139, 325180), (6412, 311335), (8015, 249068), (8770, 227626), (9940, 200833), (12278, 162590), (16030, 124534), (16259, 122780), (17540, 113813), (24556, 81295), (30695, 65036), (32060, 62267), (32518, 61390)]