2405840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:120

約数の個数: 80

約数和(自身を含む): 6227280

約数和(自身を除く): 3821440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 61, 68, 80, 85, 116, 122, 136, 145, 170, 232, 244, 272, 290, 305, 340, 464, 488, 493, 580, 610, 680, 976, 986, 1037, 1160, 1220, 1360, 1769, 1972, 2074, 2320, 2440, 2465, 3538, 3944, 4148, 4880, 4930, 5185, 7076, 7888, 8296, 8845, 9860, 10370, 14152, 16592, 17690, 19720, 20740, 28304, 30073, 35380, 39440, 41480, 60146, 70760, 82960, 120292, 141520, 150365, 240584, 300730, 481168, 601460, 1202920, 2405840]

約数ペア:

[(1, 2405840), (2, 1202920), (4, 601460), (5, 481168), (8, 300730), (10, 240584), (16, 150365), (17, 141520), (20, 120292), (29, 82960), (34, 70760), (40, 60146), (58, 41480), (61, 39440), (68, 35380), (80, 30073), (85, 28304), (116, 20740), (122, 19720), (136, 17690), (145, 16592), (170, 14152), (232, 10370), (244, 9860), (272, 8845), (290, 8296), (305, 7888), (340, 7076), (464, 5185), (488, 4930), (493, 4880), (580, 4148), (610, 3944), (680, 3538), (976, 2465), (986, 2440), (1037, 2320), (1160, 2074), (1220, 1972), (1360, 1769)]