211239680

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2089}}^1$

素因数の和:2189

約数の個数: 72

約数和(自身を含む): 512635200

約数和(自身を除く): 301395520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 395, 632, 640, 790, 1264, 1280, 1580, 2089, 2528, 3160, 4178, 5056, 6320, 8356, 10112, 10445, 12640, 16712, 20224, 20890, 25280, 33424, 41780, 50560, 66848, 83560, 101120, 133696, 165031, 167120, 267392, 330062, 334240, 534784, 660124, 668480, 825155, 1320248, 1336960, 1650310, 2640496, 2673920, 3300620, 5280992, 6601240, 10561984, 13202480, 21123968, 26404960, 42247936, 52809920, 105619840, 211239680]

約数ペア:

[(1, 211239680), (2, 105619840), (4, 52809920), (5, 42247936), (8, 26404960), (10, 21123968), (16, 13202480), (20, 10561984), (32, 6601240), (40, 5280992), (64, 3300620), (79, 2673920), (80, 2640496), (128, 1650310), (158, 1336960), (160, 1320248), (256, 825155), (316, 668480), (320, 660124), (395, 534784), (632, 334240), (640, 330062), (790, 267392), (1264, 167120), (1280, 165031), (1580, 133696), (2089, 101120), (2528, 83560), (3160, 66848), (4178, 50560), (5056, 41780), (6320, 33424), (8356, 25280), (10112, 20890), (10445, 20224), (12640, 16712)]