647331320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{743}}^1\times {\mathrm{947}}^1$

素因数の和:1724

約数の個数: 64

約数和(自身を含む): 1523473920

約数和(自身を除く): 876142600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 743, 920, 947, 1486, 1894, 2972, 3715, 3788, 4735, 5944, 7430, 7576, 9470, 14860, 17089, 18940, 21781, 29720, 34178, 37880, 43562, 68356, 85445, 87124, 108905, 136712, 170890, 174248, 217810, 341780, 435620, 683560, 703621, 871240, 1407242, 2814484, 3518105, 5628968, 7036210, 14072420, 16183283, 28144840, 32366566, 64733132, 80916415, 129466264, 161832830, 323665660, 647331320]

約数ペア:

[(1, 647331320), (2, 323665660), (4, 161832830), (5, 129466264), (8, 80916415), (10, 64733132), (20, 32366566), (23, 28144840), (40, 16183283), (46, 14072420), (92, 7036210), (115, 5628968), (184, 3518105), (230, 2814484), (460, 1407242), (743, 871240), (920, 703621), (947, 683560), (1486, 435620), (1894, 341780), (2972, 217810), (3715, 174248), (3788, 170890), (4735, 136712), (5944, 108905), (7430, 87124), (7576, 85445), (9470, 68356), (14860, 43562), (17089, 37880), (18940, 34178), (21781, 29720)]