209124760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12973}}^1$

素因数の和:13028

約数の個数: 64

約数和(自身を含む): 523111680

約数和(自身を除く): 313986920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 12973, 16120, 25946, 51892, 64865, 103784, 129730, 168649, 259460, 337298, 402163, 518920, 674596, 804326, 843245, 1349192, 1608652, 1686490, 2010815, 3217304, 3372980, 4021630, 5228119, 6745960, 8043260, 10456238, 16086520, 20912476, 26140595, 41824952, 52281190, 104562380, 209124760]

約数ペア:

[(1, 209124760), (2, 104562380), (4, 52281190), (5, 41824952), (8, 26140595), (10, 20912476), (13, 16086520), (20, 10456238), (26, 8043260), (31, 6745960), (40, 5228119), (52, 4021630), (62, 3372980), (65, 3217304), (104, 2010815), (124, 1686490), (130, 1608652), (155, 1349192), (248, 843245), (260, 804326), (310, 674596), (403, 518920), (520, 402163), (620, 337298), (806, 259460), (1240, 168649), (1612, 129730), (2015, 103784), (3224, 64865), (4030, 51892), (8060, 25946), (12973, 16120)]