268539920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{16061}}^1$

素因数の和:16104

約数の個数: 80

約数和(自身を含む): 717007680

約数和(自身を除く): 448467760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1520, 1672, 2090, 3344, 4180, 8360, 16061, 16720, 32122, 64244, 80305, 128488, 160610, 176671, 256976, 305159, 321220, 353342, 610318, 642440, 706684, 883355, 1220636, 1284880, 1413368, 1525795, 1766710, 2441272, 2826736, 3051590, 3356749, 3533420, 4882544, 6103180, 6713498, 7066840, 12206360, 13426996, 14133680, 16783745, 24412720, 26853992, 33567490, 53707984, 67134980, 134269960, 268539920]

約数ペア:

[(1, 268539920), (2, 134269960), (4, 67134980), (5, 53707984), (8, 33567490), (10, 26853992), (11, 24412720), (16, 16783745), (19, 14133680), (20, 13426996), (22, 12206360), (38, 7066840), (40, 6713498), (44, 6103180), (55, 4882544), (76, 3533420), (80, 3356749), (88, 3051590), (95, 2826736), (110, 2441272), (152, 1766710), (176, 1525795), (190, 1413368), (209, 1284880), (220, 1220636), (304, 883355), (380, 706684), (418, 642440), (440, 610318), (760, 353342), (836, 321220), (880, 305159), (1045, 256976), (1520, 176671), (1672, 160610), (2090, 128488), (3344, 80305), (4180, 64244), (8360, 32122), (16061, 16720)]