78520540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{4217}}^1$

素因数の和:4259

約数の個数: 72

約数和(自身を含む): 201957840

約数和(自身を除く): 123437300

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 3724, 4217, 4655, 8434, 9310, 16868, 18620, 21085, 29519, 42170, 59038, 80123, 84340, 118076, 147595, 160246, 206633, 295190, 320492, 400615, 413266, 560861, 590380, 801230, 826532, 1033165, 1121722, 1602460, 2066330, 2243444, 2804305, 3926027, 4132660, 5608610, 7852054, 11217220, 15704108, 19630135, 39260270, 78520540]

約数ペア:

[(1, 78520540), (2, 39260270), (4, 19630135), (5, 15704108), (7, 11217220), (10, 7852054), (14, 5608610), (19, 4132660), (20, 3926027), (28, 2804305), (35, 2243444), (38, 2066330), (49, 1602460), (70, 1121722), (76, 1033165), (95, 826532), (98, 801230), (133, 590380), (140, 560861), (190, 413266), (196, 400615), (245, 320492), (266, 295190), (380, 206633), (490, 160246), (532, 147595), (665, 118076), (931, 84340), (980, 80123), (1330, 59038), (1862, 42170), (2660, 29519), (3724, 21085), (4217, 18620), (4655, 16868), (8434, 9310)]