80729840

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 194291136

約数和(自身を除く): 113561296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 71, 80, 122, 142, 233, 244, 284, 305, 355, 466, 488, 568, 610, 710, 932, 976, 1136, 1165, 1220, 1420, 1864, 2330, 2440, 2840, 3728, 4331, 4660, 4880, 5680, 8662, 9320, 14213, 16543, 17324, 18640, 21655, 28426, 33086, 34648, 43310, 56852, 66172, 69296, 71065, 82715, 86620, 113704, 132344, 142130, 165430, 173240, 227408, 264688, 284260, 330860, 346480, 568520, 661720, 1009123, 1137040, 1323440, 2018246, 4036492, 5045615, 8072984, 10091230, 16145968, 20182460, 40364920, 80729840]

約数ペア:

[(1, 80729840), (2, 40364920), (4, 20182460), (5, 16145968), (8, 10091230), (10, 8072984), (16, 5045615), (20, 4036492), (40, 2018246), (61, 1323440), (71, 1137040), (80, 1009123), (122, 661720), (142, 568520), (233, 346480), (244, 330860), (284, 284260), (305, 264688), (355, 227408), (466, 173240), (488, 165430), (568, 142130), (610, 132344), (710, 113704), (932, 86620), (976, 82715), (1136, 71065), (1165, 69296), (1220, 66172), (1420, 56852), (1864, 43310), (2330, 34648), (2440, 33086), (2840, 28426), (3728, 21655), (4331, 18640), (4660, 17324), (4880, 16543), (5680, 14213), (8662, 9320)]