2018989140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{686731}}^1$

素因数の和:686757

約数の個数: 72

約数和(自身を含む): 6576145632

約数和(自身を除く): 4557156492

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 686731, 1373462, 2060193, 2746924, 3433655, 4120386, 4807117, 6867310, 8240772, 9614234, 10300965, 13734620, 14421351, 19228468, 20601930, 24035585, 28842702, 33649819, 41203860, 48071170, 57685404, 67299638, 72106755, 96142340, 100949457, 134599276, 144213510, 168249095, 201898914, 288427020, 336498190, 403797828, 504747285, 672996380, 1009494570, 2018989140]

約数ペア:

[(1, 2018989140), (2, 1009494570), (3, 672996380), (4, 504747285), (5, 403797828), (6, 336498190), (7, 288427020), (10, 201898914), (12, 168249095), (14, 144213510), (15, 134599276), (20, 100949457), (21, 96142340), (28, 72106755), (30, 67299638), (35, 57685404), (42, 48071170), (49, 41203860), (60, 33649819), (70, 28842702), (84, 24035585), (98, 20601930), (105, 19228468), (140, 14421351), (147, 13734620), (196, 10300965), (210, 9614234), (245, 8240772), (294, 6867310), (420, 4807117), (490, 4120386), (588, 3433655), (735, 2746924), (980, 2060193), (1470, 1373462), (2940, 686731)]