20778812370

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{28979}}^1$

素因数の和:29280

約数の個数: 96

約数和(自身を含む): 55986577920

約数和(自身を除く): 35207765550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 257, 279, 310, 465, 514, 558, 771, 930, 1285, 1395, 1542, 2313, 2570, 2790, 3855, 4626, 7710, 7967, 11565, 15934, 23130, 23901, 28979, 39835, 47802, 57958, 71703, 79670, 86937, 119505, 143406, 144895, 173874, 239010, 260811, 289790, 358515, 434685, 521622, 717030, 869370, 898349, 1304055, 1796698, 2608110, 2695047, 4491745, 5390094, 7447603, 8085141, 8983490, 13475235, 14895206, 16170282, 22342809, 26950470, 37238015, 40425705, 44685618, 67028427, 74476030, 80851410, 111714045, 134056854, 223428090, 230875693, 335142135, 461751386, 670284270, 692627079, 1154378465, 1385254158, 2077881237, 2308756930, 3463135395, 4155762474, 6926270790, 10389406185, 20778812370]

約数ペア:

[(1, 20778812370), (2, 10389406185), (3, 6926270790), (5, 4155762474), (6, 3463135395), (9, 2308756930), (10, 2077881237), (15, 1385254158), (18, 1154378465), (30, 692627079), (31, 670284270), (45, 461751386), (62, 335142135), (90, 230875693), (93, 223428090), (155, 134056854), (186, 111714045), (257, 80851410), (279, 74476030), (310, 67028427), (465, 44685618), (514, 40425705), (558, 37238015), (771, 26950470), (930, 22342809), (1285, 16170282), (1395, 14895206), (1542, 13475235), (2313, 8983490), (2570, 8085141), (2790, 7447603), (3855, 5390094), (4626, 4491745), (7710, 2695047), (7967, 2608110), (11565, 1796698), (15934, 1304055), (23130, 898349), (23901, 869370), (28979, 717030), (39835, 521622), (47802, 434685), (57958, 358515), (71703, 289790), (79670, 260811), (86937, 239010), (119505, 173874), (143406, 144895)]