80316880

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{2927}}^1$

素因数の和:2961

約数の個数: 80

約数和(自身を含む): 217843200

約数和(自身を除く): 137526320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 2927, 3430, 3920, 5488, 5854, 6860, 11708, 13720, 14635, 20489, 23416, 27440, 29270, 40978, 46832, 58540, 81956, 102445, 117080, 143423, 163912, 204890, 234160, 286846, 327824, 409780, 573692, 717115, 819560, 1003961, 1147384, 1434230, 1639120, 2007922, 2294768, 2868460, 4015844, 5019805, 5736920, 8031688, 10039610, 11473840, 16063376, 20079220, 40158440, 80316880]

約数ペア:

[(1, 80316880), (2, 40158440), (4, 20079220), (5, 16063376), (7, 11473840), (8, 10039610), (10, 8031688), (14, 5736920), (16, 5019805), (20, 4015844), (28, 2868460), (35, 2294768), (40, 2007922), (49, 1639120), (56, 1434230), (70, 1147384), (80, 1003961), (98, 819560), (112, 717115), (140, 573692), (196, 409780), (245, 327824), (280, 286846), (343, 234160), (392, 204890), (490, 163912), (560, 143423), (686, 117080), (784, 102445), (980, 81956), (1372, 58540), (1715, 46832), (1960, 40978), (2744, 29270), (2927, 27440), (3430, 23416), (3920, 20489), (5488, 14635), (5854, 13720), (6860, 11708)]