80287760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{461}}^1$

素因数の和:792

約数の個数: 80

約数和(自身を含む): 214486272

約数和(自身を除く): 134198512

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 311, 461, 560, 622, 922, 1244, 1555, 1844, 2177, 2305, 2488, 3110, 3227, 3688, 4354, 4610, 4976, 6220, 6454, 7376, 8708, 9220, 10885, 12440, 12908, 16135, 17416, 18440, 21770, 24880, 25816, 32270, 34832, 36880, 43540, 51632, 64540, 87080, 129080, 143371, 174160, 258160, 286742, 573484, 716855, 1003597, 1146968, 1433710, 2007194, 2293936, 2867420, 4014388, 5017985, 5734840, 8028776, 10035970, 11469680, 16057552, 20071940, 40143880, 80287760]

約数ペア:

[(1, 80287760), (2, 40143880), (4, 20071940), (5, 16057552), (7, 11469680), (8, 10035970), (10, 8028776), (14, 5734840), (16, 5017985), (20, 4014388), (28, 2867420), (35, 2293936), (40, 2007194), (56, 1433710), (70, 1146968), (80, 1003597), (112, 716855), (140, 573484), (280, 286742), (311, 258160), (461, 174160), (560, 143371), (622, 129080), (922, 87080), (1244, 64540), (1555, 51632), (1844, 43540), (2177, 36880), (2305, 34832), (2488, 32270), (3110, 25816), (3227, 24880), (3688, 21770), (4354, 18440), (4610, 17416), (4976, 16135), (6220, 12908), (6454, 12440), (7376, 10885), (8708, 9220)]