1920919280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{1061}}^1$

素因数の和:1195

約数の個数: 160

約数和(自身を含む): 5290697088

約数和(自身を除く): 3369777808

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 61, 70, 80, 106, 112, 122, 140, 212, 244, 265, 280, 305, 371, 424, 427, 488, 530, 560, 610, 742, 848, 854, 976, 1060, 1061, 1220, 1484, 1708, 1855, 2120, 2122, 2135, 2440, 2968, 3233, 3416, 3710, 4240, 4244, 4270, 4880, 5305, 5936, 6466, 6832, 7420, 7427, 8488, 8540, 10610, 12932, 14840, 14854, 16165, 16976, 17080, 21220, 22631, 25864, 29680, 29708, 32330, 34160, 37135, 42440, 45262, 51728, 56233, 59416, 64660, 64721, 74270, 84880, 90524, 112466, 113155, 118832, 129320, 129442, 148540, 181048, 224932, 226310, 258640, 258884, 281165, 297080, 323605, 362096, 393631, 449864, 452620, 453047, 517768, 562330, 594160, 647210, 787262, 899728, 905240, 906094, 1035536, 1124660, 1294420, 1574524, 1810480, 1812188, 1968155, 2249320, 2265235, 2588840, 3149048, 3430213, 3624376, 3936310, 4498640, 4530470, 5177680, 6298096, 6860426, 7248752, 7872620, 9060940, 13720852, 15745240, 17151065, 18121880, 24011491, 27441704, 31490480, 34302130, 36243760, 48022982, 54883408, 68604260, 96045964, 120057455, 137208520, 192091928, 240114910, 274417040, 384183856, 480229820, 960459640, 1920919280]

約数ペア:

[(1, 1920919280), (2, 960459640), (4, 480229820), (5, 384183856), (7, 274417040), (8, 240114910), (10, 192091928), (14, 137208520), (16, 120057455), (20, 96045964), (28, 68604260), (35, 54883408), (40, 48022982), (53, 36243760), (56, 34302130), (61, 31490480), (70, 27441704), (80, 24011491), (106, 18121880), (112, 17151065), (122, 15745240), (140, 13720852), (212, 9060940), (244, 7872620), (265, 7248752), (280, 6860426), (305, 6298096), (371, 5177680), (424, 4530470), (427, 4498640), (488, 3936310), (530, 3624376), (560, 3430213), (610, 3149048), (742, 2588840), (848, 2265235), (854, 2249320), (976, 1968155), (1060, 1812188), (1061, 1810480), (1220, 1574524), (1484, 1294420), (1708, 1124660), (1855, 1035536), (2120, 906094), (2122, 905240), (2135, 899728), (2440, 787262), (2968, 647210), (3233, 594160), (3416, 562330), (3710, 517768), (4240, 453047), (4244, 452620), (4270, 449864), (4880, 393631), (5305, 362096), (5936, 323605), (6466, 297080), (6832, 281165), (7420, 258884), (7427, 258640), (8488, 226310), (8540, 224932), (10610, 181048), (12932, 148540), (14840, 129442), (14854, 129320), (16165, 118832), (16976, 113155), (17080, 112466), (21220, 90524), (22631, 84880), (25864, 74270), (29680, 64721), (29708, 64660), (32330, 59416), (34160, 56233), (37135, 51728), (42440, 45262)]