80516920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{5903}}^1$

素因数の和:5956

約数の個数: 64

約数和(自身を含む): 204042240

約数和(自身を除く): 123525320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 5903, 6820, 11806, 13640, 23612, 29515, 47224, 59030, 64933, 118060, 129866, 182993, 236120, 259732, 324665, 365986, 519464, 649330, 731972, 914965, 1298660, 1463944, 1829930, 2012923, 2597320, 3659860, 4025846, 7319720, 8051692, 10064615, 16103384, 20129230, 40258460, 80516920]

約数ペア:

[(1, 80516920), (2, 40258460), (4, 20129230), (5, 16103384), (8, 10064615), (10, 8051692), (11, 7319720), (20, 4025846), (22, 3659860), (31, 2597320), (40, 2012923), (44, 1829930), (55, 1463944), (62, 1298660), (88, 914965), (110, 731972), (124, 649330), (155, 519464), (220, 365986), (248, 324665), (310, 259732), (341, 236120), (440, 182993), (620, 129866), (682, 118060), (1240, 64933), (1364, 59030), (1705, 47224), (2728, 29515), (3410, 23612), (5903, 13640), (6820, 11806)]