20130967640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{984881}}^1$

素因数の和:984972

約数の個数: 64

約数和(自身を含む): 52474512960

約数和(自身を除く): 32343545320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 4088, 5110, 10220, 20440, 984881, 1969762, 3939524, 4924405, 6894167, 7879048, 9848810, 13788334, 19697620, 27576668, 34470835, 39395240, 55153336, 68941670, 71896313, 137883340, 143792626, 275766680, 287585252, 359481565, 503274191, 575170504, 718963130, 1006548382, 1437926260, 2013096764, 2516370955, 2875852520, 4026193528, 5032741910, 10065483820, 20130967640]

約数ペア:

[(1, 20130967640), (2, 10065483820), (4, 5032741910), (5, 4026193528), (7, 2875852520), (8, 2516370955), (10, 2013096764), (14, 1437926260), (20, 1006548382), (28, 718963130), (35, 575170504), (40, 503274191), (56, 359481565), (70, 287585252), (73, 275766680), (140, 143792626), (146, 137883340), (280, 71896313), (292, 68941670), (365, 55153336), (511, 39395240), (584, 34470835), (730, 27576668), (1022, 19697620), (1460, 13788334), (2044, 9848810), (2555, 7879048), (2920, 6894167), (4088, 4924405), (5110, 3939524), (10220, 1969762), (20440, 984881)]