80981320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:627

約数の個数: 96

約数和(自身を含む): 215049600

約数和(自身を除く): 134068280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 79, 98, 140, 158, 196, 245, 280, 316, 392, 395, 490, 523, 553, 632, 790, 980, 1046, 1106, 1580, 1960, 2092, 2212, 2615, 2765, 3160, 3661, 3871, 4184, 4424, 5230, 5530, 7322, 7742, 10460, 11060, 14644, 15484, 18305, 19355, 20920, 22120, 25627, 29288, 30968, 36610, 38710, 41317, 51254, 73220, 77420, 82634, 102508, 128135, 146440, 154840, 165268, 205016, 206585, 256270, 289219, 330536, 413170, 512540, 578438, 826340, 1025080, 1156876, 1446095, 1652680, 2024533, 2313752, 2892190, 4049066, 5784380, 8098132, 10122665, 11568760, 16196264, 20245330, 40490660, 80981320]

約数ペア:

[(1, 80981320), (2, 40490660), (4, 20245330), (5, 16196264), (7, 11568760), (8, 10122665), (10, 8098132), (14, 5784380), (20, 4049066), (28, 2892190), (35, 2313752), (40, 2024533), (49, 1652680), (56, 1446095), (70, 1156876), (79, 1025080), (98, 826340), (140, 578438), (158, 512540), (196, 413170), (245, 330536), (280, 289219), (316, 256270), (392, 206585), (395, 205016), (490, 165268), (523, 154840), (553, 146440), (632, 128135), (790, 102508), (980, 82634), (1046, 77420), (1106, 73220), (1580, 51254), (1960, 41317), (2092, 38710), (2212, 36610), (2615, 30968), (2765, 29288), (3160, 25627), (3661, 22120), (3871, 20920), (4184, 19355), (4424, 18305), (5230, 15484), (5530, 14644), (7322, 11060), (7742, 10460)]