12201920

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2243}}^1$

素因数の和:2277

約数の個数: 56

約数和(自身を含む): 30778704

約数和(自身を除く): 18576784

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2243, 2720, 4486, 5440, 8972, 11215, 17944, 22430, 35888, 38131, 44860, 71776, 76262, 89720, 143552, 152524, 179440, 190655, 305048, 358880, 381310, 610096, 717760, 762620, 1220192, 1525240, 2440384, 3050480, 6100960, 12201920]

約数ペア:

[(1, 12201920), (2, 6100960), (4, 3050480), (5, 2440384), (8, 1525240), (10, 1220192), (16, 762620), (17, 717760), (20, 610096), (32, 381310), (34, 358880), (40, 305048), (64, 190655), (68, 179440), (80, 152524), (85, 143552), (136, 89720), (160, 76262), (170, 71776), (272, 44860), (320, 38131), (340, 35888), (544, 22430), (680, 17944), (1088, 11215), (1360, 8972), (2243, 5440), (2720, 4486)]