201720420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101879}}^1$

素因数の和:101905

約数の個数: 72

約数和(自身を含む): 667517760

約数和(自身を除く): 465797340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 101879, 203758, 305637, 407516, 509395, 611274, 916911, 1018790, 1120669, 1222548, 1528185, 1833822, 2037580, 2241338, 3056370, 3362007, 3667644, 4482676, 4584555, 5603345, 6112740, 6724014, 9169110, 10086021, 11206690, 13448028, 16810035, 18338220, 20172042, 22413380, 33620070, 40344084, 50430105, 67240140, 100860210, 201720420]

約数ペア:

[(1, 201720420), (2, 100860210), (3, 67240140), (4, 50430105), (5, 40344084), (6, 33620070), (9, 22413380), (10, 20172042), (11, 18338220), (12, 16810035), (15, 13448028), (18, 11206690), (20, 10086021), (22, 9169110), (30, 6724014), (33, 6112740), (36, 5603345), (44, 4584555), (45, 4482676), (55, 3667644), (60, 3362007), (66, 3056370), (90, 2241338), (99, 2037580), (110, 1833822), (132, 1528185), (165, 1222548), (180, 1120669), (198, 1018790), (220, 916911), (330, 611274), (396, 509395), (495, 407516), (660, 305637), (990, 203758), (1980, 101879)]