201554540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{2251}}^1$

素因数の和:2319

約数の個数: 72

約数和(自身を含む): 478027536

約数和(自身を除く): 276472996

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 121, 148, 185, 220, 242, 370, 407, 484, 605, 740, 814, 1210, 1628, 2035, 2251, 2420, 4070, 4477, 4502, 8140, 8954, 9004, 11255, 17908, 22385, 22510, 24761, 44770, 45020, 49522, 83287, 89540, 99044, 123805, 166574, 247610, 272371, 333148, 416435, 495220, 544742, 832870, 916157, 1089484, 1361855, 1665740, 1832314, 2723710, 3664628, 4580785, 5447420, 9161570, 10077727, 18323140, 20155454, 40310908, 50388635, 100777270, 201554540]

約数ペア:

[(1, 201554540), (2, 100777270), (4, 50388635), (5, 40310908), (10, 20155454), (11, 18323140), (20, 10077727), (22, 9161570), (37, 5447420), (44, 4580785), (55, 3664628), (74, 2723710), (110, 1832314), (121, 1665740), (148, 1361855), (185, 1089484), (220, 916157), (242, 832870), (370, 544742), (407, 495220), (484, 416435), (605, 333148), (740, 272371), (814, 247610), (1210, 166574), (1628, 123805), (2035, 99044), (2251, 89540), (2420, 83287), (4070, 49522), (4477, 45020), (4502, 44770), (8140, 24761), (8954, 22510), (9004, 22385), (11255, 17908)]