20403110

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3203}}^1$

素因数の和:3237

約数の個数: 48

約数和(自身を含む): 46022256

約数和(自身を除く): 25619146

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 3185, 3203, 6370, 6406, 16015, 22421, 32030, 41639, 44842, 83278, 112105, 156947, 208195, 224210, 291473, 313894, 416390, 582946, 784735, 1457365, 1569470, 2040311, 2914730, 4080622, 10201555, 20403110]

約数ペア:

[(1, 20403110), (2, 10201555), (5, 4080622), (7, 2914730), (10, 2040311), (13, 1569470), (14, 1457365), (26, 784735), (35, 582946), (49, 416390), (65, 313894), (70, 291473), (91, 224210), (98, 208195), (130, 156947), (182, 112105), (245, 83278), (455, 44842), (490, 41639), (637, 32030), (910, 22421), (1274, 16015), (3185, 6406), (3203, 6370)]