280578320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:313

約数の個数: 160

約数和(自身を含む): 761201280

約数和(自身を除く): 480622960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 97, 110, 152, 173, 176, 190, 194, 209, 220, 304, 346, 380, 388, 418, 440, 485, 692, 760, 776, 836, 865, 880, 970, 1045, 1067, 1384, 1520, 1552, 1672, 1730, 1843, 1903, 1940, 2090, 2134, 2768, 3287, 3344, 3460, 3686, 3806, 3880, 4180, 4268, 5335, 6574, 6920, 7372, 7612, 7760, 8360, 8536, 9215, 9515, 10670, 13148, 13840, 14744, 15224, 16435, 16720, 16781, 17072, 18430, 19030, 20273, 21340, 26296, 29488, 30448, 32870, 33562, 36157, 36860, 38060, 40546, 42680, 52592, 65740, 67124, 72314, 73720, 76120, 81092, 83905, 85360, 101365, 131480, 134248, 144628, 147440, 152240, 162184, 167810, 180785, 184591, 202730, 262960, 268496, 289256, 318839, 324368, 335620, 361570, 369182, 405460, 578512, 637678, 671240, 723140, 738364, 810920, 922955, 1275356, 1342480, 1446280, 1476728, 1594195, 1621840, 1845910, 2550712, 2892560, 2953456, 3188390, 3507229, 3691820, 5101424, 6376780, 7014458, 7383640, 12753560, 14028916, 14767280, 17536145, 25507120, 28057832, 35072290, 56115664, 70144580, 140289160, 280578320]

約数ペア:

[(1, 280578320), (2, 140289160), (4, 70144580), (5, 56115664), (8, 35072290), (10, 28057832), (11, 25507120), (16, 17536145), (19, 14767280), (20, 14028916), (22, 12753560), (38, 7383640), (40, 7014458), (44, 6376780), (55, 5101424), (76, 3691820), (80, 3507229), (88, 3188390), (95, 2953456), (97, 2892560), (110, 2550712), (152, 1845910), (173, 1621840), (176, 1594195), (190, 1476728), (194, 1446280), (209, 1342480), (220, 1275356), (304, 922955), (346, 810920), (380, 738364), (388, 723140), (418, 671240), (440, 637678), (485, 578512), (692, 405460), (760, 369182), (776, 361570), (836, 335620), (865, 324368), (880, 318839), (970, 289256), (1045, 268496), (1067, 262960), (1384, 202730), (1520, 184591), (1552, 180785), (1672, 167810), (1730, 162184), (1843, 152240), (1903, 147440), (1940, 144628), (2090, 134248), (2134, 131480), (2768, 101365), (3287, 85360), (3344, 83905), (3460, 81092), (3686, 76120), (3806, 73720), (3880, 72314), (4180, 67124), (4268, 65740), (5335, 52592), (6574, 42680), (6920, 40546), (7372, 38060), (7612, 36860), (7760, 36157), (8360, 33562), (8536, 32870), (9215, 30448), (9515, 29488), (10670, 26296), (13148, 21340), (13840, 20273), (14744, 19030), (15224, 18430), (16435, 17072), (16720, 16781)]