81264420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26557}}^1$

素因数の和:26589

約数の個数: 72

約数和(自身を含む): 261012024

約数和(自身を除く): 179747604

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 26557, 53114, 79671, 106228, 132785, 159342, 239013, 265570, 318684, 398355, 451469, 478026, 531140, 796710, 902938, 956052, 1195065, 1354407, 1593420, 1805876, 2257345, 2390130, 2708814, 4063221, 4514690, 4780260, 5417628, 6772035, 8126442, 9029380, 13544070, 16252884, 20316105, 27088140, 40632210, 81264420]

約数ペア:

[(1, 81264420), (2, 40632210), (3, 27088140), (4, 20316105), (5, 16252884), (6, 13544070), (9, 9029380), (10, 8126442), (12, 6772035), (15, 5417628), (17, 4780260), (18, 4514690), (20, 4063221), (30, 2708814), (34, 2390130), (36, 2257345), (45, 1805876), (51, 1593420), (60, 1354407), (68, 1195065), (85, 956052), (90, 902938), (102, 796710), (153, 531140), (170, 478026), (180, 451469), (204, 398355), (255, 318684), (306, 265570), (340, 239013), (510, 159342), (612, 132785), (765, 106228), (1020, 79671), (1530, 53114), (3060, 26557)]