81030900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{8713}}^1$

素因数の和:8761

約数の個数: 72

約数和(自身を含む): 242040064

約数和(自身を除く): 161009164

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 31, 50, 60, 62, 75, 93, 100, 124, 150, 155, 186, 300, 310, 372, 465, 620, 775, 930, 1550, 1860, 2325, 3100, 4650, 8713, 9300, 17426, 26139, 34852, 43565, 52278, 87130, 104556, 130695, 174260, 217825, 261390, 270103, 435650, 522780, 540206, 653475, 810309, 871300, 1080412, 1306950, 1350515, 1620618, 2613900, 2701030, 3241236, 4051545, 5402060, 6752575, 8103090, 13505150, 16206180, 20257725, 27010300, 40515450, 81030900]

約数ペア:

[(1, 81030900), (2, 40515450), (3, 27010300), (4, 20257725), (5, 16206180), (6, 13505150), (10, 8103090), (12, 6752575), (15, 5402060), (20, 4051545), (25, 3241236), (30, 2701030), (31, 2613900), (50, 1620618), (60, 1350515), (62, 1306950), (75, 1080412), (93, 871300), (100, 810309), (124, 653475), (150, 540206), (155, 522780), (186, 435650), (300, 270103), (310, 261390), (372, 217825), (465, 174260), (620, 130695), (775, 104556), (930, 87130), (1550, 52278), (1860, 43565), (2325, 34852), (3100, 26139), (4650, 17426), (8713, 9300)]