87454720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:104

約数の個数: 176

約数和(自身を含む): 235814400

約数和(自身を除く): 148359680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 31, 32, 38, 40, 58, 62, 64, 76, 80, 95, 116, 124, 128, 145, 152, 155, 160, 190, 232, 248, 256, 290, 304, 310, 320, 380, 464, 496, 512, 551, 580, 589, 608, 620, 640, 760, 899, 928, 992, 1024, 1102, 1160, 1178, 1216, 1240, 1280, 1520, 1798, 1856, 1984, 2204, 2320, 2356, 2432, 2480, 2560, 2755, 2945, 3040, 3596, 3712, 3968, 4408, 4495, 4640, 4712, 4864, 4960, 5120, 5510, 5890, 6080, 7192, 7424, 7936, 8816, 8990, 9280, 9424, 9728, 9920, 11020, 11780, 12160, 14384, 14848, 15872, 17081, 17632, 17980, 18560, 18848, 19456, 19840, 22040, 23560, 24320, 28768, 29696, 31744, 34162, 35264, 35960, 37120, 37696, 39680, 44080, 47120, 48640, 57536, 68324, 70528, 71920, 74240, 75392, 79360, 85405, 88160, 94240, 97280, 115072, 136648, 141056, 143840, 148480, 150784, 158720, 170810, 176320, 188480, 230144, 273296, 282112, 287680, 301568, 341620, 352640, 376960, 460288, 546592, 564224, 575360, 603136, 683240, 705280, 753920, 920576, 1093184, 1150720, 1366480, 1410560, 1507840, 2186368, 2301440, 2732960, 2821120, 3015680, 4372736, 4602880, 5465920, 8745472, 10931840, 17490944, 21863680, 43727360, 87454720]

約数ペア:

[(1, 87454720), (2, 43727360), (4, 21863680), (5, 17490944), (8, 10931840), (10, 8745472), (16, 5465920), (19, 4602880), (20, 4372736), (29, 3015680), (31, 2821120), (32, 2732960), (38, 2301440), (40, 2186368), (58, 1507840), (62, 1410560), (64, 1366480), (76, 1150720), (80, 1093184), (95, 920576), (116, 753920), (124, 705280), (128, 683240), (145, 603136), (152, 575360), (155, 564224), (160, 546592), (190, 460288), (232, 376960), (248, 352640), (256, 341620), (290, 301568), (304, 287680), (310, 282112), (320, 273296), (380, 230144), (464, 188480), (496, 176320), (512, 170810), (551, 158720), (580, 150784), (589, 148480), (608, 143840), (620, 141056), (640, 136648), (760, 115072), (899, 97280), (928, 94240), (992, 88160), (1024, 85405), (1102, 79360), (1160, 75392), (1178, 74240), (1216, 71920), (1240, 70528), (1280, 68324), (1520, 57536), (1798, 48640), (1856, 47120), (1984, 44080), (2204, 39680), (2320, 37696), (2356, 37120), (2432, 35960), (2480, 35264), (2560, 34162), (2755, 31744), (2945, 29696), (3040, 28768), (3596, 24320), (3712, 23560), (3968, 22040), (4408, 19840), (4495, 19456), (4640, 18848), (4712, 18560), (4864, 17980), (4960, 17632), (5120, 17081), (5510, 15872), (5890, 14848), (6080, 14384), (7192, 12160), (7424, 11780), (7936, 11020), (8816, 9920), (8990, 9728), (9280, 9424)]