20503090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^2$

素因数の和:175

約数の個数: 48

約数和(自身を含む): 40792320

約数和(自身を除く): 20289230

約数列:

[1, 2, 5, 10, 19, 31, 38, 59, 62, 95, 118, 155, 190, 295, 310, 589, 590, 1121, 1178, 1829, 2242, 2945, 3481, 3658, 5605, 5890, 6962, 9145, 11210, 17405, 18290, 34751, 34810, 66139, 69502, 107911, 132278, 173755, 215822, 330695, 347510, 539555, 661390, 1079110, 2050309, 4100618, 10251545, 20503090]

約数ペア:

[(1, 20503090), (2, 10251545), (5, 4100618), (10, 2050309), (19, 1079110), (31, 661390), (38, 539555), (59, 347510), (62, 330695), (95, 215822), (118, 173755), (155, 132278), (190, 107911), (295, 69502), (310, 66139), (589, 34810), (590, 34751), (1121, 18290), (1178, 17405), (1829, 11210), (2242, 9145), (2945, 6962), (3481, 5890), (3658, 5605)]