81667740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1607}}^1$

素因数の和:1648

約数の個数: 144

約数和(自身を含む): 287433216

約数和(自身を除く): 205765476

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, 1607, 1694, 1815, 2310, 2420, 2541, 3214, 3388, 3630, 4235, 4620, 4821, 5082, 6428, 7260, 8035, 8470, 9642, 10164, 11249, 12705, 16070, 16940, 17677, 19284, 22498, 24105, 25410, 32140, 33747, 35354, 44996, 48210, 50820, 53031, 56245, 67494, 70708, 88385, 96420, 106062, 112490, 123739, 134988, 168735, 176770, 194447, 212124, 224980, 247478, 265155, 337470, 353540, 371217, 388894, 494956, 530310, 583341, 618695, 674940, 742434, 777788, 972235, 1060620, 1166682, 1237390, 1361129, 1484868, 1856085, 1944470, 2333364, 2474780, 2722258, 2916705, 3712170, 3888940, 4083387, 5444516, 5833410, 6805645, 7424340, 8166774, 11666820, 13611290, 16333548, 20416935, 27222580, 40833870, 81667740]

約数ペア:

[(1, 81667740), (2, 40833870), (3, 27222580), (4, 20416935), (5, 16333548), (6, 13611290), (7, 11666820), (10, 8166774), (11, 7424340), (12, 6805645), (14, 5833410), (15, 5444516), (20, 4083387), (21, 3888940), (22, 3712170), (28, 2916705), (30, 2722258), (33, 2474780), (35, 2333364), (42, 1944470), (44, 1856085), (55, 1484868), (60, 1361129), (66, 1237390), (70, 1166682), (77, 1060620), (84, 972235), (105, 777788), (110, 742434), (121, 674940), (132, 618695), (140, 583341), (154, 530310), (165, 494956), (210, 388894), (220, 371217), (231, 353540), (242, 337470), (308, 265155), (330, 247478), (363, 224980), (385, 212124), (420, 194447), (462, 176770), (484, 168735), (605, 134988), (660, 123739), (726, 112490), (770, 106062), (847, 96420), (924, 88385), (1155, 70708), (1210, 67494), (1452, 56245), (1540, 53031), (1607, 50820), (1694, 48210), (1815, 44996), (2310, 35354), (2420, 33747), (2541, 32140), (3214, 25410), (3388, 24105), (3630, 22498), (4235, 19284), (4620, 17677), (4821, 16940), (5082, 16070), (6428, 12705), (7260, 11249), (8035, 10164), (8470, 9642)]