28075040

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{3581}}^1$

素因数の和:3610

約数の個数: 72

約数和(自身を含む): 77177772

約数和(自身を除く): 49102732

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3581, 3920, 7162, 7840, 14324, 17905, 25067, 28648, 35810, 50134, 57296, 71620, 100268, 114592, 125335, 143240, 175469, 200536, 250670, 286480, 350938, 401072, 501340, 572960, 701876, 802144, 877345, 1002680, 1403752, 1754690, 2005360, 2807504, 3509380, 4010720, 5615008, 7018760, 14037520, 28075040]

約数ペア:

[(1, 28075040), (2, 14037520), (4, 7018760), (5, 5615008), (7, 4010720), (8, 3509380), (10, 2807504), (14, 2005360), (16, 1754690), (20, 1403752), (28, 1002680), (32, 877345), (35, 802144), (40, 701876), (49, 572960), (56, 501340), (70, 401072), (80, 350938), (98, 286480), (112, 250670), (140, 200536), (160, 175469), (196, 143240), (224, 125335), (245, 114592), (280, 100268), (392, 71620), (490, 57296), (560, 50134), (784, 35810), (980, 28648), (1120, 25067), (1568, 17905), (1960, 14324), (3581, 7840), (3920, 7162)]