20628480

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:124

約数の個数: 176

約数和(自身を含む): 70744320

約数和(自身を除く): 50115840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 79, 80, 85, 96, 102, 120, 128, 136, 158, 160, 170, 192, 204, 237, 240, 255, 256, 272, 316, 320, 340, 384, 395, 408, 474, 480, 510, 512, 544, 632, 640, 680, 768, 790, 816, 948, 960, 1020, 1024, 1088, 1185, 1264, 1280, 1343, 1360, 1536, 1580, 1632, 1896, 1920, 2040, 2176, 2370, 2528, 2560, 2686, 2720, 3072, 3160, 3264, 3792, 3840, 4029, 4080, 4352, 4740, 5056, 5120, 5372, 5440, 6320, 6528, 6715, 7584, 7680, 8058, 8160, 8704, 9480, 10112, 10744, 10880, 12640, 13056, 13430, 15168, 15360, 16116, 16320, 17408, 18960, 20145, 20224, 21488, 21760, 25280, 26112, 26860, 30336, 32232, 32640, 37920, 40290, 40448, 42976, 43520, 50560, 52224, 53720, 60672, 64464, 65280, 75840, 80580, 80896, 85952, 87040, 101120, 107440, 121344, 128928, 130560, 151680, 161160, 171904, 202240, 214880, 242688, 257856, 261120, 303360, 322320, 343808, 404480, 429760, 515712, 606720, 644640, 687616, 859520, 1031424, 1213440, 1289280, 1375232, 1719040, 2062848, 2578560, 3438080, 4125696, 5157120, 6876160, 10314240, 20628480]

約数ペア:

[(1, 20628480), (2, 10314240), (3, 6876160), (4, 5157120), (5, 4125696), (6, 3438080), (8, 2578560), (10, 2062848), (12, 1719040), (15, 1375232), (16, 1289280), (17, 1213440), (20, 1031424), (24, 859520), (30, 687616), (32, 644640), (34, 606720), (40, 515712), (48, 429760), (51, 404480), (60, 343808), (64, 322320), (68, 303360), (79, 261120), (80, 257856), (85, 242688), (96, 214880), (102, 202240), (120, 171904), (128, 161160), (136, 151680), (158, 130560), (160, 128928), (170, 121344), (192, 107440), (204, 101120), (237, 87040), (240, 85952), (255, 80896), (256, 80580), (272, 75840), (316, 65280), (320, 64464), (340, 60672), (384, 53720), (395, 52224), (408, 50560), (474, 43520), (480, 42976), (510, 40448), (512, 40290), (544, 37920), (632, 32640), (640, 32232), (680, 30336), (768, 26860), (790, 26112), (816, 25280), (948, 21760), (960, 21488), (1020, 20224), (1024, 20145), (1088, 18960), (1185, 17408), (1264, 16320), (1280, 16116), (1343, 15360), (1360, 15168), (1536, 13430), (1580, 13056), (1632, 12640), (1896, 10880), (1920, 10744), (2040, 10112), (2176, 9480), (2370, 8704), (2528, 8160), (2560, 8058), (2686, 7680), (2720, 7584), (3072, 6715), (3160, 6528), (3264, 6320), (3792, 5440), (3840, 5372), (4029, 5120), (4080, 5056), (4352, 4740)]