81822020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1109}}^1$

素因数の和:1173

約数の個数: 96

約数和(自身を含む): 214824960

約数和(自身を除く): 133002940

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 31, 34, 35, 62, 68, 70, 85, 119, 124, 140, 155, 170, 217, 238, 310, 340, 434, 476, 527, 595, 620, 868, 1054, 1085, 1109, 1190, 2108, 2170, 2218, 2380, 2635, 3689, 4340, 4436, 5270, 5545, 7378, 7763, 10540, 11090, 14756, 15526, 18445, 18853, 22180, 31052, 34379, 36890, 37706, 38815, 68758, 73780, 75412, 77630, 94265, 131971, 137516, 155260, 171895, 188530, 240653, 263942, 343790, 377060, 481306, 527884, 584443, 659855, 687580, 962612, 1168886, 1203265, 1319710, 2337772, 2406530, 2639420, 2922215, 4091101, 4813060, 5844430, 8182202, 11688860, 16364404, 20455505, 40911010, 81822020]

約数ペア:

[(1, 81822020), (2, 40911010), (4, 20455505), (5, 16364404), (7, 11688860), (10, 8182202), (14, 5844430), (17, 4813060), (20, 4091101), (28, 2922215), (31, 2639420), (34, 2406530), (35, 2337772), (62, 1319710), (68, 1203265), (70, 1168886), (85, 962612), (119, 687580), (124, 659855), (140, 584443), (155, 527884), (170, 481306), (217, 377060), (238, 343790), (310, 263942), (340, 240653), (434, 188530), (476, 171895), (527, 155260), (595, 137516), (620, 131971), (868, 94265), (1054, 77630), (1085, 75412), (1109, 73780), (1190, 68758), (2108, 38815), (2170, 37706), (2218, 36890), (2380, 34379), (2635, 31052), (3689, 22180), (4340, 18853), (4436, 18445), (5270, 15526), (5545, 14756), (7378, 11090), (7763, 10540)]