39774100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 90228600

約数和(自身を除く): 50454500

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 89, 100, 109, 164, 178, 205, 218, 356, 410, 436, 445, 545, 820, 890, 1025, 1090, 1780, 2050, 2180, 2225, 2725, 3649, 4100, 4450, 4469, 5450, 7298, 8900, 8938, 9701, 10900, 14596, 17876, 18245, 19402, 22345, 36490, 38804, 44690, 48505, 72980, 89380, 91225, 97010, 111725, 182450, 194020, 223450, 242525, 364900, 397741, 446900, 485050, 795482, 970100, 1590964, 1988705, 3977410, 7954820, 9943525, 19887050, 39774100]

約数ペア:

[(1, 39774100), (2, 19887050), (4, 9943525), (5, 7954820), (10, 3977410), (20, 1988705), (25, 1590964), (41, 970100), (50, 795482), (82, 485050), (89, 446900), (100, 397741), (109, 364900), (164, 242525), (178, 223450), (205, 194020), (218, 182450), (356, 111725), (410, 97010), (436, 91225), (445, 89380), (545, 72980), (820, 48505), (890, 44690), (1025, 38804), (1090, 36490), (1780, 22345), (2050, 19402), (2180, 18245), (2225, 17876), (2725, 14596), (3649, 10900), (4100, 9701), (4450, 8938), (4469, 8900), (5450, 7298)]