2019712480

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1\times {\mathrm{617}}^1$

素因数の和:1172

約数の個数: 96

約数和(自身を含む): 4905684000

約数和(自身を除く): 2885971520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 499, 617, 656, 820, 998, 1234, 1312, 1640, 1996, 2468, 2495, 3085, 3280, 3992, 4936, 4990, 6170, 6560, 7984, 9872, 9980, 12340, 15968, 19744, 19960, 20459, 24680, 25297, 39920, 40918, 49360, 50594, 79840, 81836, 98720, 101188, 102295, 126485, 163672, 202376, 204590, 252970, 307883, 327344, 404752, 409180, 505940, 615766, 654688, 809504, 818360, 1011880, 1231532, 1539415, 1636720, 2023760, 2463064, 3078830, 3273440, 4047520, 4926128, 6157660, 9852256, 12315320, 12623203, 24630640, 25246406, 49261280, 50492812, 63116015, 100985624, 126232030, 201971248, 252464060, 403942496, 504928120, 1009856240, 2019712480]

約数ペア:

[(1, 2019712480), (2, 1009856240), (4, 504928120), (5, 403942496), (8, 252464060), (10, 201971248), (16, 126232030), (20, 100985624), (32, 63116015), (40, 50492812), (41, 49261280), (80, 25246406), (82, 24630640), (160, 12623203), (164, 12315320), (205, 9852256), (328, 6157660), (410, 4926128), (499, 4047520), (617, 3273440), (656, 3078830), (820, 2463064), (998, 2023760), (1234, 1636720), (1312, 1539415), (1640, 1231532), (1996, 1011880), (2468, 818360), (2495, 809504), (3085, 654688), (3280, 615766), (3992, 505940), (4936, 409180), (4990, 404752), (6170, 327344), (6560, 307883), (7984, 252970), (9872, 204590), (9980, 202376), (12340, 163672), (15968, 126485), (19744, 102295), (19960, 101188), (20459, 98720), (24680, 81836), (25297, 79840), (39920, 50594), (40918, 49360)]