19945968

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:159

約数の個数: 160

約数和(自身を含む): 64281600

約数和(自身を除く): 44335632

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 29, 42, 46, 48, 56, 58, 69, 84, 87, 89, 92, 112, 116, 138, 161, 168, 174, 178, 184, 203, 232, 267, 276, 322, 336, 348, 356, 368, 406, 464, 483, 534, 552, 609, 623, 644, 667, 696, 712, 812, 966, 1068, 1104, 1218, 1246, 1288, 1334, 1392, 1424, 1624, 1869, 1932, 2001, 2047, 2136, 2436, 2492, 2576, 2581, 2668, 3248, 3738, 3864, 4002, 4094, 4272, 4669, 4872, 4984, 5162, 5336, 6141, 7476, 7728, 7743, 8004, 8188, 9338, 9744, 9968, 10324, 10672, 12282, 14007, 14329, 14952, 15486, 16008, 16376, 18067, 18676, 20648, 24564, 28014, 28658, 29904, 30972, 32016, 32752, 36134, 37352, 41296, 42987, 49128, 54201, 56028, 57316, 59363, 61944, 72268, 74704, 85974, 98256, 108402, 112056, 114632, 118726, 123888, 144536, 171948, 178089, 216804, 224112, 229264, 237452, 289072, 343896, 356178, 415541, 433608, 474904, 687792, 712356, 831082, 867216, 949808, 1246623, 1424712, 1662164, 2493246, 2849424, 3324328, 4986492, 6648656, 9972984, 19945968]

約数ペア:

[(1, 19945968), (2, 9972984), (3, 6648656), (4, 4986492), (6, 3324328), (7, 2849424), (8, 2493246), (12, 1662164), (14, 1424712), (16, 1246623), (21, 949808), (23, 867216), (24, 831082), (28, 712356), (29, 687792), (42, 474904), (46, 433608), (48, 415541), (56, 356178), (58, 343896), (69, 289072), (84, 237452), (87, 229264), (89, 224112), (92, 216804), (112, 178089), (116, 171948), (138, 144536), (161, 123888), (168, 118726), (174, 114632), (178, 112056), (184, 108402), (203, 98256), (232, 85974), (267, 74704), (276, 72268), (322, 61944), (336, 59363), (348, 57316), (356, 56028), (368, 54201), (406, 49128), (464, 42987), (483, 41296), (534, 37352), (552, 36134), (609, 32752), (623, 32016), (644, 30972), (667, 29904), (696, 28658), (712, 28014), (812, 24564), (966, 20648), (1068, 18676), (1104, 18067), (1218, 16376), (1246, 16008), (1288, 15486), (1334, 14952), (1392, 14329), (1424, 14007), (1624, 12282), (1869, 10672), (1932, 10324), (2001, 9968), (2047, 9744), (2136, 9338), (2436, 8188), (2492, 8004), (2576, 7743), (2581, 7728), (2668, 7476), (3248, 6141), (3738, 5336), (3864, 5162), (4002, 4984), (4094, 4872), (4272, 4669)]