31280620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{541}}^1$

素因数の和:623

約数の個数: 72

約数和(自身を含む): 77852880

約数和(自身を除く): 46572260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 59, 70, 98, 118, 140, 196, 236, 245, 295, 413, 490, 541, 590, 826, 980, 1082, 1180, 1652, 2065, 2164, 2705, 2891, 3787, 4130, 5410, 5782, 7574, 8260, 10820, 11564, 14455, 15148, 18935, 26509, 28910, 31919, 37870, 53018, 57820, 63838, 75740, 106036, 127676, 132545, 159595, 223433, 265090, 319190, 446866, 530180, 638380, 893732, 1117165, 1564031, 2234330, 3128062, 4468660, 6256124, 7820155, 15640310, 31280620]

約数ペア:

[(1, 31280620), (2, 15640310), (4, 7820155), (5, 6256124), (7, 4468660), (10, 3128062), (14, 2234330), (20, 1564031), (28, 1117165), (35, 893732), (49, 638380), (59, 530180), (70, 446866), (98, 319190), (118, 265090), (140, 223433), (196, 159595), (236, 132545), (245, 127676), (295, 106036), (413, 75740), (490, 63838), (541, 57820), (590, 53018), (826, 37870), (980, 31919), (1082, 28910), (1180, 26509), (1652, 18935), (2065, 15148), (2164, 14455), (2705, 11564), (2891, 10820), (3787, 8260), (4130, 7574), (5410, 5782)]