177347960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{108139}}^1$

素因数の和:108191

約数の個数: 32

約数和(自身を含む): 408769200

約数和(自身を除く): 231421240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 108139, 216278, 432556, 540695, 865112, 1081390, 2162780, 4325560, 4433699, 8867398, 17734796, 22168495, 35469592, 44336990, 88673980, 177347960]

約数ペア:

[(1, 177347960), (2, 88673980), (4, 44336990), (5, 35469592), (8, 22168495), (10, 17734796), (20, 8867398), (40, 4433699), (41, 4325560), (82, 2162780), (164, 1081390), (205, 865112), (328, 540695), (410, 432556), (820, 216278), (1640, 108139)]