31127680

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2861}}^1$

素因数の和:2897

約数の個数: 64

約数和(自身を含む): 78819480

約数和(自身を除く): 47691800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2720, 2861, 5440, 5722, 10880, 11444, 14305, 22888, 28610, 45776, 48637, 57220, 91552, 97274, 114440, 183104, 194548, 228880, 243185, 366208, 389096, 457760, 486370, 778192, 915520, 972740, 1556384, 1831040, 1945480, 3112768, 3890960, 6225536, 7781920, 15563840, 31127680]

約数ペア:

[(1, 31127680), (2, 15563840), (4, 7781920), (5, 6225536), (8, 3890960), (10, 3112768), (16, 1945480), (17, 1831040), (20, 1556384), (32, 972740), (34, 915520), (40, 778192), (64, 486370), (68, 457760), (80, 389096), (85, 366208), (128, 243185), (136, 228880), (160, 194548), (170, 183104), (272, 114440), (320, 97274), (340, 91552), (544, 57220), (640, 48637), (680, 45776), (1088, 28610), (1360, 22888), (2176, 14305), (2720, 11444), (2861, 10880), (5440, 5722)]