208526990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{19993}}^1$

素因数の和:20156

約数の個数: 32

約数和(自身を含む): 431870400

約数和(自身を除く): 223343410

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 149, 298, 745, 1043, 1490, 2086, 5215, 10430, 19993, 39986, 99965, 139951, 199930, 279902, 699755, 1399510, 2978957, 5957914, 14894785, 20852699, 29789570, 41705398, 104263495, 208526990]

約数ペア:

[(1, 208526990), (2, 104263495), (5, 41705398), (7, 29789570), (10, 20852699), (14, 14894785), (35, 5957914), (70, 2978957), (149, 1399510), (298, 699755), (745, 279902), (1043, 199930), (1490, 139951), (2086, 99965), (5215, 39986), (10430, 19993)]