1880220680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{116639}}^1$

素因数の和:116694

約数の個数: 64

約数和(自身を含む): 4702924800

約数和(自身を除く): 2822704120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 116639, 233278, 466556, 583195, 933112, 1166390, 1516307, 2332780, 3032614, 3615809, 4665560, 6065228, 7231618, 7581535, 12130456, 14463236, 15163070, 18079045, 28926472, 30326140, 36158090, 47005517, 60652280, 72316180, 94011034, 144632360, 188022068, 235027585, 376044136, 470055170, 940110340, 1880220680]

約数ペア:

[(1, 1880220680), (2, 940110340), (4, 470055170), (5, 376044136), (8, 235027585), (10, 188022068), (13, 144632360), (20, 94011034), (26, 72316180), (31, 60652280), (40, 47005517), (52, 36158090), (62, 30326140), (65, 28926472), (104, 18079045), (124, 15163070), (130, 14463236), (155, 12130456), (248, 7581535), (260, 7231618), (310, 6065228), (403, 4665560), (520, 3615809), (620, 3032614), (806, 2332780), (1240, 1516307), (1612, 1166390), (2015, 933112), (3224, 583195), (4030, 466556), (8060, 233278), (16120, 116639)]