68218780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{461}}^1$

素因数の和:635

約数の個数: 72

約数和(自身を含む): 168116256

約数和(自身を除く): 99897476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 151, 196, 245, 302, 461, 490, 604, 755, 922, 980, 1057, 1510, 1844, 2114, 2305, 3020, 3227, 4228, 4610, 5285, 6454, 7399, 9220, 10570, 12908, 14798, 16135, 21140, 22589, 29596, 32270, 36995, 45178, 64540, 69611, 73990, 90356, 112945, 139222, 147980, 225890, 278444, 348055, 451780, 487277, 696110, 974554, 1392220, 1949108, 2436385, 3410939, 4872770, 6821878, 9745540, 13643756, 17054695, 34109390, 68218780]

約数ペア:

[(1, 68218780), (2, 34109390), (4, 17054695), (5, 13643756), (7, 9745540), (10, 6821878), (14, 4872770), (20, 3410939), (28, 2436385), (35, 1949108), (49, 1392220), (70, 974554), (98, 696110), (140, 487277), (151, 451780), (196, 348055), (245, 278444), (302, 225890), (461, 147980), (490, 139222), (604, 112945), (755, 90356), (922, 73990), (980, 69611), (1057, 64540), (1510, 45178), (1844, 36995), (2114, 32270), (2305, 29596), (3020, 22589), (3227, 21140), (4228, 16135), (4610, 14798), (5285, 12908), (6454, 10570), (7399, 9220)]