20580480

素因数分解:

$2^7\times 3^4\times 5^1\times {\mathrm{397}}^1$

素因数の和:428

約数の個数: 160

約数和(自身を含む): 73681740

約数和(自身を除く): 53101260

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 270, 288, 320, 324, 360, 384, 397, 405, 432, 480, 540, 576, 640, 648, 720, 794, 810, 864, 960, 1080, 1152, 1191, 1296, 1440, 1588, 1620, 1728, 1920, 1985, 2160, 2382, 2592, 2880, 3176, 3240, 3456, 3573, 3970, 4320, 4764, 5184, 5760, 5955, 6352, 6480, 7146, 7940, 8640, 9528, 10368, 10719, 11910, 12704, 12960, 14292, 15880, 17280, 17865, 19056, 21438, 23820, 25408, 25920, 28584, 31760, 32157, 35730, 38112, 42876, 47640, 50816, 51840, 53595, 57168, 63520, 64314, 71460, 76224, 85752, 95280, 107190, 114336, 127040, 128628, 142920, 152448, 160785, 171504, 190560, 214380, 228672, 254080, 257256, 285840, 321570, 343008, 381120, 428760, 457344, 514512, 571680, 643140, 686016, 762240, 857520, 1029024, 1143360, 1286280, 1372032, 1715040, 2058048, 2286720, 2572560, 3430080, 4116096, 5145120, 6860160, 10290240, 20580480]

約数ペア:

[(1, 20580480), (2, 10290240), (3, 6860160), (4, 5145120), (5, 4116096), (6, 3430080), (8, 2572560), (9, 2286720), (10, 2058048), (12, 1715040), (15, 1372032), (16, 1286280), (18, 1143360), (20, 1029024), (24, 857520), (27, 762240), (30, 686016), (32, 643140), (36, 571680), (40, 514512), (45, 457344), (48, 428760), (54, 381120), (60, 343008), (64, 321570), (72, 285840), (80, 257256), (81, 254080), (90, 228672), (96, 214380), (108, 190560), (120, 171504), (128, 160785), (135, 152448), (144, 142920), (160, 128628), (162, 127040), (180, 114336), (192, 107190), (216, 95280), (240, 85752), (270, 76224), (288, 71460), (320, 64314), (324, 63520), (360, 57168), (384, 53595), (397, 51840), (405, 50816), (432, 47640), (480, 42876), (540, 38112), (576, 35730), (640, 32157), (648, 31760), (720, 28584), (794, 25920), (810, 25408), (864, 23820), (960, 21438), (1080, 19056), (1152, 17865), (1191, 17280), (1296, 15880), (1440, 14292), (1588, 12960), (1620, 12704), (1728, 11910), (1920, 10719), (1985, 10368), (2160, 9528), (2382, 8640), (2592, 7940), (2880, 7146), (3176, 6480), (3240, 6352), (3456, 5955), (3573, 5760), (3970, 5184), (4320, 4764)]