26297720

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^2$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 60563160

約数和(自身を除く): 34265440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 89, 166, 178, 332, 356, 415, 445, 664, 712, 830, 890, 1660, 1780, 3320, 3560, 7387, 7921, 14774, 15842, 29548, 31684, 36935, 39605, 59096, 63368, 73870, 79210, 147740, 158420, 295480, 316840, 657443, 1314886, 2629772, 3287215, 5259544, 6574430, 13148860, 26297720]

約数ペア:

[(1, 26297720), (2, 13148860), (4, 6574430), (5, 5259544), (8, 3287215), (10, 2629772), (20, 1314886), (40, 657443), (83, 316840), (89, 295480), (166, 158420), (178, 147740), (332, 79210), (356, 73870), (415, 63368), (445, 59096), (664, 39605), (712, 36935), (830, 31684), (890, 29548), (1660, 15842), (1780, 14774), (3320, 7921), (3560, 7387)]