20807360

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{1327}}^1$

素因数の和:1358

約数の個数: 84

約数和(自身を含む): 57680352

約数和(自身を除く): 36872992

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1327, 1568, 1960, 2240, 2654, 3136, 3920, 5308, 6635, 7840, 9289, 10616, 13270, 15680, 18578, 21232, 26540, 37156, 42464, 46445, 53080, 65023, 74312, 84928, 92890, 106160, 130046, 148624, 185780, 212320, 260092, 297248, 325115, 371560, 424640, 520184, 594496, 650230, 743120, 1040368, 1300460, 1486240, 2080736, 2600920, 2972480, 4161472, 5201840, 10403680, 20807360]

約数ペア:

[(1, 20807360), (2, 10403680), (4, 5201840), (5, 4161472), (7, 2972480), (8, 2600920), (10, 2080736), (14, 1486240), (16, 1300460), (20, 1040368), (28, 743120), (32, 650230), (35, 594496), (40, 520184), (49, 424640), (56, 371560), (64, 325115), (70, 297248), (80, 260092), (98, 212320), (112, 185780), (140, 148624), (160, 130046), (196, 106160), (224, 92890), (245, 84928), (280, 74312), (320, 65023), (392, 53080), (448, 46445), (490, 42464), (560, 37156), (784, 26540), (980, 21232), (1120, 18578), (1327, 15680), (1568, 13270), (1960, 10616), (2240, 9289), (2654, 7840), (3136, 6635), (3920, 5308)]