20184720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2713}}^1$

素因数の和:2760

約数の個数: 80

約数和(自身を含む): 64614912

約数和(自身を除く): 44430192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2713, 3720, 5426, 7440, 8139, 10852, 13565, 16278, 21704, 27130, 32556, 40695, 43408, 54260, 65112, 81390, 84103, 108520, 130224, 162780, 168206, 217040, 252309, 325560, 336412, 420515, 504618, 651120, 672824, 841030, 1009236, 1261545, 1345648, 1682060, 2018472, 2523090, 3364120, 4036944, 5046180, 6728240, 10092360, 20184720]

約数ペア:

[(1, 20184720), (2, 10092360), (3, 6728240), (4, 5046180), (5, 4036944), (6, 3364120), (8, 2523090), (10, 2018472), (12, 1682060), (15, 1345648), (16, 1261545), (20, 1009236), (24, 841030), (30, 672824), (31, 651120), (40, 504618), (48, 420515), (60, 336412), (62, 325560), (80, 252309), (93, 217040), (120, 168206), (124, 162780), (155, 130224), (186, 108520), (240, 84103), (248, 81390), (310, 65112), (372, 54260), (465, 43408), (496, 40695), (620, 32556), (744, 27130), (930, 21704), (1240, 16278), (1488, 13565), (1860, 10852), (2480, 8139), (2713, 7440), (3720, 5426)]