80213980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{1063}}^1$

素因数の和:1104

約数の個数: 96

約数和(自身を含む): 214502400

約数和(自身を除く): 134288420

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 343, 385, 490, 539, 686, 770, 980, 1063, 1078, 1372, 1540, 1715, 2126, 2156, 2695, 3430, 3773, 4252, 5315, 5390, 6860, 7441, 7546, 10630, 10780, 11693, 14882, 15092, 18865, 21260, 23386, 29764, 37205, 37730, 46772, 52087, 58465, 74410, 75460, 81851, 104174, 116930, 148820, 163702, 208348, 233860, 260435, 327404, 364609, 409255, 520870, 572957, 729218, 818510, 1041740, 1145914, 1458436, 1637020, 1823045, 2291828, 2864785, 3646090, 4010699, 5729570, 7292180, 8021398, 11459140, 16042796, 20053495, 40106990, 80213980]

約数ペア:

[(1, 80213980), (2, 40106990), (4, 20053495), (5, 16042796), (7, 11459140), (10, 8021398), (11, 7292180), (14, 5729570), (20, 4010699), (22, 3646090), (28, 2864785), (35, 2291828), (44, 1823045), (49, 1637020), (55, 1458436), (70, 1145914), (77, 1041740), (98, 818510), (110, 729218), (140, 572957), (154, 520870), (196, 409255), (220, 364609), (245, 327404), (308, 260435), (343, 233860), (385, 208348), (490, 163702), (539, 148820), (686, 116930), (770, 104174), (980, 81851), (1063, 75460), (1078, 74410), (1372, 58465), (1540, 52087), (1715, 46772), (2126, 37730), (2156, 37205), (2695, 29764), (3430, 23386), (3773, 21260), (4252, 18865), (5315, 15092), (5390, 14882), (6860, 11693), (7441, 10780), (7546, 10630)]