20496350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{373}}^1$

素因数の和:549

約数の個数: 48

約数和(自身を含む): 43964448

約数和(自身を除く): 23468098

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 157, 175, 314, 350, 373, 746, 785, 1099, 1570, 1865, 2198, 2611, 3730, 3925, 5222, 5495, 7850, 9325, 10990, 13055, 18650, 26110, 27475, 54950, 58561, 65275, 117122, 130550, 292805, 409927, 585610, 819854, 1464025, 2049635, 2928050, 4099270, 10248175, 20496350]

約数ペア:

[(1, 20496350), (2, 10248175), (5, 4099270), (7, 2928050), (10, 2049635), (14, 1464025), (25, 819854), (35, 585610), (50, 409927), (70, 292805), (157, 130550), (175, 117122), (314, 65275), (350, 58561), (373, 54950), (746, 27475), (785, 26110), (1099, 18650), (1570, 13055), (1865, 10990), (2198, 9325), (2611, 7850), (3730, 5495), (3925, 5222)]