18891950

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{701}}^1$

素因数の和:738

約数の個数: 72

約数和(自身を含む): 44655624

約数和(自身を除く): 25763674

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 49, 50, 55, 70, 77, 98, 110, 154, 175, 245, 275, 350, 385, 490, 539, 550, 701, 770, 1078, 1225, 1402, 1925, 2450, 2695, 3505, 3850, 4907, 5390, 7010, 7711, 9814, 13475, 15422, 17525, 24535, 26950, 34349, 35050, 38555, 49070, 53977, 68698, 77110, 107954, 122675, 171745, 192775, 245350, 269885, 343490, 377839, 385550, 539770, 755678, 858725, 1349425, 1717450, 1889195, 2698850, 3778390, 9445975, 18891950]

約数ペア:

[(1, 18891950), (2, 9445975), (5, 3778390), (7, 2698850), (10, 1889195), (11, 1717450), (14, 1349425), (22, 858725), (25, 755678), (35, 539770), (49, 385550), (50, 377839), (55, 343490), (70, 269885), (77, 245350), (98, 192775), (110, 171745), (154, 122675), (175, 107954), (245, 77110), (275, 68698), (350, 53977), (385, 49070), (490, 38555), (539, 35050), (550, 34349), (701, 26950), (770, 24535), (1078, 17525), (1225, 15422), (1402, 13475), (1925, 9814), (2450, 7711), (2695, 7010), (3505, 5390), (3850, 4907)]