73788880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1181}}^1$

素因数の和:1276

約数の個数: 80

約数和(自身を含む): 189952128

約数和(自身を除く): 116163248

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 568, 710, 781, 880, 1136, 1181, 1420, 1562, 2362, 2840, 3124, 3905, 4724, 5680, 5905, 6248, 7810, 9448, 11810, 12496, 12991, 15620, 18896, 23620, 25982, 31240, 47240, 51964, 62480, 64955, 83851, 94480, 103928, 129910, 167702, 207856, 259820, 335404, 419255, 519640, 670808, 838510, 922361, 1039280, 1341616, 1677020, 1844722, 3354040, 3689444, 4611805, 6708080, 7378888, 9223610, 14757776, 18447220, 36894440, 73788880]

約数ペア:

[(1, 73788880), (2, 36894440), (4, 18447220), (5, 14757776), (8, 9223610), (10, 7378888), (11, 6708080), (16, 4611805), (20, 3689444), (22, 3354040), (40, 1844722), (44, 1677020), (55, 1341616), (71, 1039280), (80, 922361), (88, 838510), (110, 670808), (142, 519640), (176, 419255), (220, 335404), (284, 259820), (355, 207856), (440, 167702), (568, 129910), (710, 103928), (781, 94480), (880, 83851), (1136, 64955), (1181, 62480), (1420, 51964), (1562, 47240), (2362, 31240), (2840, 25982), (3124, 23620), (3905, 18896), (4724, 15620), (5680, 12991), (5905, 12496), (6248, 11810), (7810, 9448)]