30672040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{15649}}^1$

素因数の和:15674

約数の個数: 48

約数和(自身を含む): 80284500

約数和(自身を除く): 49612460

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 15649, 31298, 62596, 78245, 109543, 125192, 156490, 219086, 312980, 438172, 547715, 625960, 766801, 876344, 1095430, 1533602, 2190860, 3067204, 3834005, 4381720, 6134408, 7668010, 15336020, 30672040]

約数ペア:

[(1, 30672040), (2, 15336020), (4, 7668010), (5, 6134408), (7, 4381720), (8, 3834005), (10, 3067204), (14, 2190860), (20, 1533602), (28, 1095430), (35, 876344), (40, 766801), (49, 625960), (56, 547715), (70, 438172), (98, 312980), (140, 219086), (196, 156490), (245, 125192), (280, 109543), (392, 78245), (490, 62596), (980, 31298), (1960, 15649)]