204869990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{17707}}^1$

素因数の和:17816

約数の個数: 32

約数和(自身を含む): 401617440

約数和(自身を除く): 196747450

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 2314, 5785, 11570, 17707, 35414, 88535, 177070, 230191, 460382, 1150955, 1575923, 2301910, 3151846, 7879615, 15759230, 20486999, 40973998, 102434995, 204869990]

約数ペア:

[(1, 204869990), (2, 102434995), (5, 40973998), (10, 20486999), (13, 15759230), (26, 7879615), (65, 3151846), (89, 2301910), (130, 1575923), (178, 1150955), (445, 460382), (890, 230191), (1157, 177070), (2314, 88535), (5785, 35414), (11570, 17707)]