121002040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:664

約数の個数: 64

約数和(自身を含む): 280026720

約数和(自身を除く): 159024680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 101, 122, 202, 244, 305, 404, 488, 491, 505, 610, 808, 982, 1010, 1220, 1964, 2020, 2440, 2455, 3928, 4040, 4910, 6161, 9820, 12322, 19640, 24644, 29951, 30805, 49288, 49591, 59902, 61610, 99182, 119804, 123220, 149755, 198364, 239608, 246440, 247955, 299510, 396728, 495910, 599020, 991820, 1198040, 1983640, 3025051, 6050102, 12100204, 15125255, 24200408, 30250510, 60501020, 121002040]

約数ペア:

[(1, 121002040), (2, 60501020), (4, 30250510), (5, 24200408), (8, 15125255), (10, 12100204), (20, 6050102), (40, 3025051), (61, 1983640), (101, 1198040), (122, 991820), (202, 599020), (244, 495910), (305, 396728), (404, 299510), (488, 247955), (491, 246440), (505, 239608), (610, 198364), (808, 149755), (982, 123220), (1010, 119804), (1220, 99182), (1964, 61610), (2020, 59902), (2440, 49591), (2455, 49288), (3928, 30805), (4040, 29951), (4910, 24644), (6161, 19640), (9820, 12322)]