31461920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{4013}}^1$

素因数の和:4042

約数の個数: 72

約数和(自身を含む): 86485644

約数和(自身を除く): 55023724

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 4013, 7840, 8026, 16052, 20065, 28091, 32104, 40130, 56182, 64208, 80260, 112364, 128416, 140455, 160520, 196637, 224728, 280910, 321040, 393274, 449456, 561820, 642080, 786548, 898912, 983185, 1123640, 1573096, 1966370, 2247280, 3146192, 3932740, 4494560, 6292384, 7865480, 15730960, 31461920]

約数ペア:

[(1, 31461920), (2, 15730960), (4, 7865480), (5, 6292384), (7, 4494560), (8, 3932740), (10, 3146192), (14, 2247280), (16, 1966370), (20, 1573096), (28, 1123640), (32, 983185), (35, 898912), (40, 786548), (49, 642080), (56, 561820), (70, 449456), (80, 393274), (98, 321040), (112, 280910), (140, 224728), (160, 196637), (196, 160520), (224, 140455), (245, 128416), (280, 112364), (392, 80260), (490, 64208), (560, 56182), (784, 40130), (980, 32104), (1120, 28091), (1568, 20065), (1960, 16052), (3920, 8026), (4013, 7840)]