1640246520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1242611}}^1$

素因数の和:1242636

約数の個数: 64

約数和(自身を含む): 5368083840

約数和(自身を除く): 3727837320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 1242611, 2485222, 3727833, 4970444, 6213055, 7455666, 9940888, 12426110, 13668721, 14911332, 18639165, 24852220, 27337442, 29822664, 37278330, 41006163, 49704440, 54674884, 68343605, 74556660, 82012326, 109349768, 136687210, 149113320, 164024652, 205030815, 273374420, 328049304, 410061630, 546748840, 820123260, 1640246520]

約数ペア:

[(1, 1640246520), (2, 820123260), (3, 546748840), (4, 410061630), (5, 328049304), (6, 273374420), (8, 205030815), (10, 164024652), (11, 149113320), (12, 136687210), (15, 109349768), (20, 82012326), (22, 74556660), (24, 68343605), (30, 54674884), (33, 49704440), (40, 41006163), (44, 37278330), (55, 29822664), (60, 27337442), (66, 24852220), (88, 18639165), (110, 14911332), (120, 13668721), (132, 12426110), (165, 9940888), (220, 7455666), (264, 6213055), (330, 4970444), (440, 3727833), (660, 2485222), (1320, 1242611)]