101920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1$

素因数の和:42

約数の個数: 72

約数和(自身を含む): 301644

約数和(自身を除く): 199724

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 364, 392, 416, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1040, 1120, 1274, 1456, 1568, 1820, 1960, 2080, 2548, 2912, 3185, 3640, 3920, 5096, 6370, 7280, 7840, 10192, 12740, 14560, 20384, 25480, 50960, 101920]

約数ペア:

[(1, 101920), (2, 50960), (4, 25480), (5, 20384), (7, 14560), (8, 12740), (10, 10192), (13, 7840), (14, 7280), (16, 6370), (20, 5096), (26, 3920), (28, 3640), (32, 3185), (35, 2912), (40, 2548), (49, 2080), (52, 1960), (56, 1820), (65, 1568), (70, 1456), (80, 1274), (91, 1120), (98, 1040), (104, 980), (112, 910), (130, 784), (140, 728), (160, 637), (182, 560), (196, 520), (208, 490), (224, 455), (245, 416), (260, 392), (280, 364)]