1971152640

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{431}}^1$

素因数の和:855

約数の個数: 216

約数和(自身を含む): 6853025088

約数和(自身を除く): 4881872448

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 397, 431, 480, 576, 640, 720, 768, 794, 862, 960, 1152, 1191, 1280, 1293, 1440, 1588, 1724, 1920, 1985, 2155, 2304, 2382, 2586, 2880, 3176, 3448, 3573, 3840, 3879, 3970, 4310, 4764, 5172, 5760, 5955, 6352, 6465, 6896, 7146, 7758, 7940, 8620, 9528, 10344, 11520, 11910, 12704, 12930, 13792, 14292, 15516, 15880, 17240, 17865, 19056, 19395, 20688, 23820, 25408, 25860, 27584, 28584, 31032, 31760, 34480, 35730, 38112, 38790, 41376, 47640, 50816, 51720, 55168, 57168, 62064, 63520, 68960, 71460, 76224, 77580, 82752, 95280, 101632, 103440, 110336, 114336, 124128, 127040, 137920, 142920, 152448, 155160, 165504, 171107, 190560, 206880, 228672, 248256, 254080, 275840, 285840, 304896, 310320, 331008, 342214, 381120, 413760, 457344, 496512, 508160, 513321, 551680, 571680, 620640, 684428, 762240, 827520, 855535, 914688, 993024, 1026642, 1143360, 1241280, 1368856, 1524480, 1539963, 1655040, 1711070, 2053284, 2286720, 2482560, 2566605, 2737712, 3079926, 3422140, 4106568, 4573440, 4965120, 5133210, 5475424, 6159852, 6844280, 7699815, 8213136, 10266420, 10950848, 12319704, 13688560, 15399630, 16426272, 20532840, 21901696, 24639408, 27377120, 30799260, 32852544, 41065680, 43803392, 49278816, 54754240, 61598520, 65705088, 82131360, 98557632, 109508480, 123197040, 131410176, 164262720, 197115264, 219016960, 246394080, 328525440, 394230528, 492788160, 657050880, 985576320, 1971152640]

約数ペア:

[(1, 1971152640), (2, 985576320), (3, 657050880), (4, 492788160), (5, 394230528), (6, 328525440), (8, 246394080), (9, 219016960), (10, 197115264), (12, 164262720), (15, 131410176), (16, 123197040), (18, 109508480), (20, 98557632), (24, 82131360), (30, 65705088), (32, 61598520), (36, 54754240), (40, 49278816), (45, 43803392), (48, 41065680), (60, 32852544), (64, 30799260), (72, 27377120), (80, 24639408), (90, 21901696), (96, 20532840), (120, 16426272), (128, 15399630), (144, 13688560), (160, 12319704), (180, 10950848), (192, 10266420), (240, 8213136), (256, 7699815), (288, 6844280), (320, 6159852), (360, 5475424), (384, 5133210), (397, 4965120), (431, 4573440), (480, 4106568), (576, 3422140), (640, 3079926), (720, 2737712), (768, 2566605), (794, 2482560), (862, 2286720), (960, 2053284), (1152, 1711070), (1191, 1655040), (1280, 1539963), (1293, 1524480), (1440, 1368856), (1588, 1241280), (1724, 1143360), (1920, 1026642), (1985, 993024), (2155, 914688), (2304, 855535), (2382, 827520), (2586, 762240), (2880, 684428), (3176, 620640), (3448, 571680), (3573, 551680), (3840, 513321), (3879, 508160), (3970, 496512), (4310, 457344), (4764, 413760), (5172, 381120), (5760, 342214), (5955, 331008), (6352, 310320), (6465, 304896), (6896, 285840), (7146, 275840), (7758, 254080), (7940, 248256), (8620, 228672), (9528, 206880), (10344, 190560), (11520, 171107), (11910, 165504), (12704, 155160), (12930, 152448), (13792, 142920), (14292, 137920), (15516, 127040), (15880, 124128), (17240, 114336), (17865, 110336), (19056, 103440), (19395, 101632), (20688, 95280), (23820, 82752), (25408, 77580), (25860, 76224), (27584, 71460), (28584, 68960), (31032, 63520), (31760, 62064), (34480, 57168), (35730, 55168), (38112, 51720), (38790, 50816), (41376, 47640)]