20295390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:337

約数の個数: 64

約数和(自身を含む): 50964480

約数和(自身を除く): 30669090

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 139, 155, 157, 186, 278, 310, 314, 417, 465, 471, 695, 785, 834, 930, 942, 1390, 1570, 2085, 2355, 4170, 4309, 4710, 4867, 8618, 9734, 12927, 14601, 21545, 21823, 24335, 25854, 29202, 43090, 43646, 48670, 64635, 65469, 73005, 109115, 129270, 130938, 146010, 218230, 327345, 654690, 676513, 1353026, 2029539, 3382565, 4059078, 6765130, 10147695, 20295390]

約数ペア:

[(1, 20295390), (2, 10147695), (3, 6765130), (5, 4059078), (6, 3382565), (10, 2029539), (15, 1353026), (30, 676513), (31, 654690), (62, 327345), (93, 218230), (139, 146010), (155, 130938), (157, 129270), (186, 109115), (278, 73005), (310, 65469), (314, 64635), (417, 48670), (465, 43646), (471, 43090), (695, 29202), (785, 25854), (834, 24335), (930, 21823), (942, 21545), (1390, 14601), (1570, 12927), (2085, 9734), (2355, 8618), (4170, 4867), (4309, 4710)]