87040720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{659}}^1$

素因数の和:812

約数の個数: 80

約数和(自身を含む): 219985920

約数和(自身を除く): 132945200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 127, 130, 208, 254, 260, 508, 520, 635, 659, 1016, 1040, 1270, 1318, 1651, 2032, 2540, 2636, 3295, 3302, 5080, 5272, 6590, 6604, 8255, 8567, 10160, 10544, 13180, 13208, 16510, 17134, 26360, 26416, 33020, 34268, 42835, 52720, 66040, 68536, 83693, 85670, 132080, 137072, 167386, 171340, 334772, 342680, 418465, 669544, 685360, 836930, 1088009, 1339088, 1673860, 2176018, 3347720, 4352036, 5440045, 6695440, 8704072, 10880090, 17408144, 21760180, 43520360, 87040720]

約数ペア:

[(1, 87040720), (2, 43520360), (4, 21760180), (5, 17408144), (8, 10880090), (10, 8704072), (13, 6695440), (16, 5440045), (20, 4352036), (26, 3347720), (40, 2176018), (52, 1673860), (65, 1339088), (80, 1088009), (104, 836930), (127, 685360), (130, 669544), (208, 418465), (254, 342680), (260, 334772), (508, 171340), (520, 167386), (635, 137072), (659, 132080), (1016, 85670), (1040, 83693), (1270, 68536), (1318, 66040), (1651, 52720), (2032, 42835), (2540, 34268), (2636, 33020), (3295, 26416), (3302, 26360), (5080, 17134), (5272, 16510), (6590, 13208), (6604, 13180), (8255, 10544), (8567, 10160)]