19119880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{443}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 46992960

約数和(自身を除く): 27873080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 83, 104, 130, 166, 260, 332, 415, 443, 520, 664, 830, 886, 1079, 1660, 1772, 2158, 2215, 3320, 3544, 4316, 4430, 5395, 5759, 8632, 8860, 10790, 11518, 17720, 21580, 23036, 28795, 36769, 43160, 46072, 57590, 73538, 115180, 147076, 183845, 230360, 294152, 367690, 477997, 735380, 955994, 1470760, 1911988, 2389985, 3823976, 4779970, 9559940, 19119880]

約数ペア:

[(1, 19119880), (2, 9559940), (4, 4779970), (5, 3823976), (8, 2389985), (10, 1911988), (13, 1470760), (20, 955994), (26, 735380), (40, 477997), (52, 367690), (65, 294152), (83, 230360), (104, 183845), (130, 147076), (166, 115180), (260, 73538), (332, 57590), (415, 46072), (443, 43160), (520, 36769), (664, 28795), (830, 23036), (886, 21580), (1079, 17720), (1660, 11518), (1772, 10790), (2158, 8860), (2215, 8632), (3320, 5759), (3544, 5395), (4316, 4430)]