77997760

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3433}}^1$

素因数の和:3521

約数の個数: 56

約数和(自身を含む): 188402976

約数和(自身を除く): 110405216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1420, 2272, 2840, 3433, 4544, 5680, 6866, 11360, 13732, 17165, 22720, 27464, 34330, 54928, 68660, 109856, 137320, 219712, 243743, 274640, 487486, 549280, 974972, 1098560, 1218715, 1949944, 2437430, 3899888, 4874860, 7799776, 9749720, 15599552, 19499440, 38998880, 77997760]

約数ペア:

[(1, 77997760), (2, 38998880), (4, 19499440), (5, 15599552), (8, 9749720), (10, 7799776), (16, 4874860), (20, 3899888), (32, 2437430), (40, 1949944), (64, 1218715), (71, 1098560), (80, 974972), (142, 549280), (160, 487486), (284, 274640), (320, 243743), (355, 219712), (568, 137320), (710, 109856), (1136, 68660), (1420, 54928), (2272, 34330), (2840, 27464), (3433, 22720), (4544, 17165), (5680, 13732), (6866, 11360)]