2049404780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1\times {\mathrm{3299}}^1$

素因数の和:3746

約数の個数: 48

約数和(自身を含む): 4365900000

約数和(自身を除く): 2316495220

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 349, 356, 445, 698, 890, 1396, 1745, 1780, 3299, 3490, 6598, 6980, 13196, 16495, 31061, 32990, 62122, 65980, 124244, 155305, 293611, 310610, 587222, 621220, 1151351, 1174444, 1468055, 2302702, 2936110, 4605404, 5756755, 5872220, 11513510, 23027020, 102470239, 204940478, 409880956, 512351195, 1024702390, 2049404780]

約数ペア:

[(1, 2049404780), (2, 1024702390), (4, 512351195), (5, 409880956), (10, 204940478), (20, 102470239), (89, 23027020), (178, 11513510), (349, 5872220), (356, 5756755), (445, 4605404), (698, 2936110), (890, 2302702), (1396, 1468055), (1745, 1174444), (1780, 1151351), (3299, 621220), (3490, 587222), (6598, 310610), (6980, 293611), (13196, 155305), (16495, 124244), (31061, 65980), (32990, 62122)]