1982540

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{17}}^2$

素因数の和:64

約数の個数: 72

約数和(自身を含む): 5157600

約数和(自身を除く): 3175060

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 289, 340, 343, 476, 490, 578, 595, 686, 833, 980, 1156, 1190, 1372, 1445, 1666, 1715, 2023, 2380, 2890, 3332, 3430, 4046, 4165, 5780, 5831, 6860, 8092, 8330, 10115, 11662, 14161, 16660, 20230, 23324, 28322, 29155, 40460, 56644, 58310, 70805, 99127, 116620, 141610, 198254, 283220, 396508, 495635, 991270, 1982540]

約数ペア:

[(1, 1982540), (2, 991270), (4, 495635), (5, 396508), (7, 283220), (10, 198254), (14, 141610), (17, 116620), (20, 99127), (28, 70805), (34, 58310), (35, 56644), (49, 40460), (68, 29155), (70, 28322), (85, 23324), (98, 20230), (119, 16660), (140, 14161), (170, 11662), (196, 10115), (238, 8330), (245, 8092), (289, 6860), (340, 5831), (343, 5780), (476, 4165), (490, 4046), (578, 3430), (595, 3332), (686, 2890), (833, 2380), (980, 2023), (1156, 1715), (1190, 1666), (1372, 1445)]