2155123740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{42407}}^1$

素因数の和:42448

約数の個数: 144

約数和(自身を含む): 7580514816

約数和(自身を除く): 5425391076

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 121, 132, 140, 154, 165, 210, 220, 231, 242, 308, 330, 363, 385, 420, 462, 484, 605, 660, 726, 770, 847, 924, 1155, 1210, 1452, 1540, 1694, 1815, 2310, 2420, 2541, 3388, 3630, 4235, 4620, 5082, 7260, 8470, 10164, 12705, 16940, 25410, 42407, 50820, 84814, 127221, 169628, 212035, 254442, 296849, 424070, 466477, 508884, 593698, 636105, 848140, 890547, 932954, 1187396, 1272210, 1399431, 1484245, 1781094, 1865908, 2332385, 2544420, 2798862, 2968490, 3265339, 3562188, 4452735, 4664770, 5131247, 5597724, 5936980, 6530678, 6997155, 8905470, 9329540, 9796017, 10262494, 13061356, 13994310, 15393741, 16326695, 17810940, 19592034, 20524988, 25656235, 27988620, 30787482, 32653390, 35918729, 39184068, 48980085, 51312470, 61574964, 65306780, 71837458, 76968705, 97960170, 102624940, 107756187, 143674916, 153937410, 179593645, 195920340, 215512374, 307874820, 359187290, 431024748, 538780935, 718374580, 1077561870, 2155123740]

約数ペア:

[(1, 2155123740), (2, 1077561870), (3, 718374580), (4, 538780935), (5, 431024748), (6, 359187290), (7, 307874820), (10, 215512374), (11, 195920340), (12, 179593645), (14, 153937410), (15, 143674916), (20, 107756187), (21, 102624940), (22, 97960170), (28, 76968705), (30, 71837458), (33, 65306780), (35, 61574964), (42, 51312470), (44, 48980085), (55, 39184068), (60, 35918729), (66, 32653390), (70, 30787482), (77, 27988620), (84, 25656235), (105, 20524988), (110, 19592034), (121, 17810940), (132, 16326695), (140, 15393741), (154, 13994310), (165, 13061356), (210, 10262494), (220, 9796017), (231, 9329540), (242, 8905470), (308, 6997155), (330, 6530678), (363, 5936980), (385, 5597724), (420, 5131247), (462, 4664770), (484, 4452735), (605, 3562188), (660, 3265339), (726, 2968490), (770, 2798862), (847, 2544420), (924, 2332385), (1155, 1865908), (1210, 1781094), (1452, 1484245), (1540, 1399431), (1694, 1272210), (1815, 1187396), (2310, 932954), (2420, 890547), (2541, 848140), (3388, 636105), (3630, 593698), (4235, 508884), (4620, 466477), (5082, 424070), (7260, 296849), (8470, 254442), (10164, 212035), (12705, 169628), (16940, 127221), (25410, 84814), (42407, 50820)]