220187940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{524257}}^1$

素因数の和:524276

約数の個数: 48

約数和(自身を含む): 704602752

約数和(自身を除く): 484414812

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 524257, 1048514, 1572771, 2097028, 2621285, 3145542, 3669799, 5242570, 6291084, 7339598, 7863855, 10485140, 11009397, 14679196, 15727710, 18348995, 22018794, 31455420, 36697990, 44037588, 55046985, 73395980, 110093970, 220187940]

約数ペア:

[(1, 220187940), (2, 110093970), (3, 73395980), (4, 55046985), (5, 44037588), (6, 36697990), (7, 31455420), (10, 22018794), (12, 18348995), (14, 15727710), (15, 14679196), (20, 11009397), (21, 10485140), (28, 7863855), (30, 7339598), (35, 6291084), (42, 5242570), (60, 3669799), (70, 3145542), (84, 2621285), (105, 2097028), (140, 1572771), (210, 1048514), (420, 524257)]