81356784

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2411}}^1$

素因数の和:2478

約数の個数: 80

約数和(自身を含む): 227306880

約数和(自身を除く): 145950096

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 37, 38, 48, 57, 74, 76, 111, 114, 148, 152, 222, 228, 296, 304, 444, 456, 592, 703, 888, 912, 1406, 1776, 2109, 2411, 2812, 4218, 4822, 5624, 7233, 8436, 9644, 11248, 14466, 16872, 19288, 28932, 33744, 38576, 45809, 57864, 89207, 91618, 115728, 137427, 178414, 183236, 267621, 274854, 356828, 366472, 535242, 549708, 713656, 732944, 1070484, 1099416, 1427312, 1694933, 2140968, 2198832, 3389866, 4281936, 5084799, 6779732, 10169598, 13559464, 20339196, 27118928, 40678392, 81356784]

約数ペア:

[(1, 81356784), (2, 40678392), (3, 27118928), (4, 20339196), (6, 13559464), (8, 10169598), (12, 6779732), (16, 5084799), (19, 4281936), (24, 3389866), (37, 2198832), (38, 2140968), (48, 1694933), (57, 1427312), (74, 1099416), (76, 1070484), (111, 732944), (114, 713656), (148, 549708), (152, 535242), (222, 366472), (228, 356828), (296, 274854), (304, 267621), (444, 183236), (456, 178414), (592, 137427), (703, 115728), (888, 91618), (912, 89207), (1406, 57864), (1776, 45809), (2109, 38576), (2411, 33744), (2812, 28932), (4218, 19288), (4822, 16872), (5624, 14466), (7233, 11248), (8436, 9644)]