28370320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{313}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 72888192

約数和(自身を除く): 44517872

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 103, 110, 176, 206, 220, 313, 412, 440, 515, 626, 824, 880, 1030, 1133, 1252, 1565, 1648, 2060, 2266, 2504, 3130, 3443, 4120, 4532, 5008, 5665, 6260, 6886, 8240, 9064, 11330, 12520, 13772, 17215, 18128, 22660, 25040, 27544, 32239, 34430, 45320, 55088, 64478, 68860, 90640, 128956, 137720, 161195, 257912, 275440, 322390, 354629, 515824, 644780, 709258, 1289560, 1418516, 1773145, 2579120, 2837032, 3546290, 5674064, 7092580, 14185160, 28370320]

約数ペア:

[(1, 28370320), (2, 14185160), (4, 7092580), (5, 5674064), (8, 3546290), (10, 2837032), (11, 2579120), (16, 1773145), (20, 1418516), (22, 1289560), (40, 709258), (44, 644780), (55, 515824), (80, 354629), (88, 322390), (103, 275440), (110, 257912), (176, 161195), (206, 137720), (220, 128956), (313, 90640), (412, 68860), (440, 64478), (515, 55088), (626, 45320), (824, 34430), (880, 32239), (1030, 27544), (1133, 25040), (1252, 22660), (1565, 18128), (1648, 17215), (2060, 13772), (2266, 12520), (2504, 11330), (3130, 9064), (3443, 8240), (4120, 6886), (4532, 6260), (5008, 5665)]