38845040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{911}}^1$

素因数の和:978

約数の個数: 80

約数和(自身を含む): 99743616

約数和(自身を除く): 60898576

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 205, 208, 260, 328, 410, 520, 533, 656, 820, 911, 1040, 1066, 1640, 1822, 2132, 2665, 3280, 3644, 4264, 4555, 5330, 7288, 8528, 9110, 10660, 11843, 14576, 18220, 21320, 23686, 36440, 37351, 42640, 47372, 59215, 72880, 74702, 94744, 118430, 149404, 186755, 189488, 236860, 298808, 373510, 473720, 485563, 597616, 747020, 947440, 971126, 1494040, 1942252, 2427815, 2988080, 3884504, 4855630, 7769008, 9711260, 19422520, 38845040]

約数ペア:

[(1, 38845040), (2, 19422520), (4, 9711260), (5, 7769008), (8, 4855630), (10, 3884504), (13, 2988080), (16, 2427815), (20, 1942252), (26, 1494040), (40, 971126), (41, 947440), (52, 747020), (65, 597616), (80, 485563), (82, 473720), (104, 373510), (130, 298808), (164, 236860), (205, 189488), (208, 186755), (260, 149404), (328, 118430), (410, 94744), (520, 74702), (533, 72880), (656, 59215), (820, 47372), (911, 42640), (1040, 37351), (1066, 36440), (1640, 23686), (1822, 21320), (2132, 18220), (2665, 14576), (3280, 11843), (3644, 10660), (4264, 9110), (4555, 8528), (5330, 7288)]