206720

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:55

約数の個数: 64

約数和(自身を含む): 550800

約数和(自身を除く): 344080

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 128, 136, 152, 160, 170, 190, 272, 304, 320, 323, 340, 380, 544, 608, 640, 646, 680, 760, 1088, 1216, 1292, 1360, 1520, 1615, 2176, 2432, 2584, 2720, 3040, 3230, 5168, 5440, 6080, 6460, 10336, 10880, 12160, 12920, 20672, 25840, 41344, 51680, 103360, 206720]

約数ペア:

[(1, 206720), (2, 103360), (4, 51680), (5, 41344), (8, 25840), (10, 20672), (16, 12920), (17, 12160), (19, 10880), (20, 10336), (32, 6460), (34, 6080), (38, 5440), (40, 5168), (64, 3230), (68, 3040), (76, 2720), (80, 2584), (85, 2432), (95, 2176), (128, 1615), (136, 1520), (152, 1360), (160, 1292), (170, 1216), (190, 1088), (272, 760), (304, 680), (320, 646), (323, 640), (340, 608), (380, 544)]