82010320

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{20921}}^1$

素因数の和:20948

約数の個数: 60

約数和(自身を含む): 221815044

約数和(自身を除く): 139804724

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 20921, 41842, 83684, 104605, 146447, 167368, 209210, 292894, 334736, 418420, 585788, 732235, 836840, 1025129, 1171576, 1464470, 1673680, 2050258, 2343152, 2928940, 4100516, 5125645, 5857880, 8201032, 10251290, 11715760, 16402064, 20502580, 41005160, 82010320]

約数ペア:

[(1, 82010320), (2, 41005160), (4, 20502580), (5, 16402064), (7, 11715760), (8, 10251290), (10, 8201032), (14, 5857880), (16, 5125645), (20, 4100516), (28, 2928940), (35, 2343152), (40, 2050258), (49, 1673680), (56, 1464470), (70, 1171576), (80, 1025129), (98, 836840), (112, 732235), (140, 585788), (196, 418420), (245, 334736), (280, 292894), (392, 209210), (490, 167368), (560, 146447), (784, 104605), (980, 83684), (1960, 41842), (3920, 20921)]