217113950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{509}}^1$

素因数の和:989

約数の個数: 48

約数和(自身を含む): 426870000

約数和(自身を除く): 209756050

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 449, 475, 509, 898, 950, 1018, 2245, 2545, 4490, 5090, 8531, 9671, 11225, 12725, 17062, 19342, 22450, 25450, 42655, 48355, 85310, 96710, 213275, 228541, 241775, 426550, 457082, 483550, 1142705, 2285410, 4342279, 5713525, 8684558, 11427050, 21711395, 43422790, 108556975, 217113950]

約数ペア:

[(1, 217113950), (2, 108556975), (5, 43422790), (10, 21711395), (19, 11427050), (25, 8684558), (38, 5713525), (50, 4342279), (95, 2285410), (190, 1142705), (449, 483550), (475, 457082), (509, 426550), (898, 241775), (950, 228541), (1018, 213275), (2245, 96710), (2545, 85310), (4490, 48355), (5090, 42655), (8531, 25450), (9671, 22450), (11225, 19342), (12725, 17062)]