256379160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4889}}^1$

素因数の和:4945

約数の個数: 128

約数和(自身を含む): 844992000

約数和(自身を除く): 588612840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 23, 24, 30, 38, 40, 46, 57, 60, 69, 76, 92, 95, 114, 115, 120, 138, 152, 184, 190, 228, 230, 276, 285, 345, 380, 437, 456, 460, 552, 570, 690, 760, 874, 920, 1140, 1311, 1380, 1748, 2185, 2280, 2622, 2760, 3496, 4370, 4889, 5244, 6555, 8740, 9778, 10488, 13110, 14667, 17480, 19556, 24445, 26220, 29334, 39112, 48890, 52440, 58668, 73335, 92891, 97780, 112447, 117336, 146670, 185782, 195560, 224894, 278673, 293340, 337341, 371564, 449788, 464455, 557346, 562235, 586680, 674682, 743128, 899576, 928910, 1114692, 1124470, 1349364, 1393365, 1686705, 1857820, 2136493, 2229384, 2248940, 2698728, 2786730, 3373410, 3715640, 4272986, 4497880, 5573460, 6409479, 6746820, 8545972, 10682465, 11146920, 12818958, 13493640, 17091944, 21364930, 25637916, 32047395, 42729860, 51275832, 64094790, 85459720, 128189580, 256379160]

約数ペア:

[(1, 256379160), (2, 128189580), (3, 85459720), (4, 64094790), (5, 51275832), (6, 42729860), (8, 32047395), (10, 25637916), (12, 21364930), (15, 17091944), (19, 13493640), (20, 12818958), (23, 11146920), (24, 10682465), (30, 8545972), (38, 6746820), (40, 6409479), (46, 5573460), (57, 4497880), (60, 4272986), (69, 3715640), (76, 3373410), (92, 2786730), (95, 2698728), (114, 2248940), (115, 2229384), (120, 2136493), (138, 1857820), (152, 1686705), (184, 1393365), (190, 1349364), (228, 1124470), (230, 1114692), (276, 928910), (285, 899576), (345, 743128), (380, 674682), (437, 586680), (456, 562235), (460, 557346), (552, 464455), (570, 449788), (690, 371564), (760, 337341), (874, 293340), (920, 278673), (1140, 224894), (1311, 195560), (1380, 185782), (1748, 146670), (2185, 117336), (2280, 112447), (2622, 97780), (2760, 92891), (3496, 73335), (4370, 58668), (4889, 52440), (5244, 48890), (6555, 39112), (8740, 29334), (9778, 26220), (10488, 24445), (13110, 19556), (14667, 17480)]