20021145728

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{2467}}^1$

素因数の和:2618

約数の個数: 128

約数和(自身を含む): 43499980800

約数和(自身を除く): 23478835072

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 47, 64, 71, 76, 94, 128, 142, 152, 188, 284, 304, 376, 568, 608, 752, 893, 1136, 1216, 1349, 1504, 1786, 2272, 2432, 2467, 2698, 3008, 3337, 3572, 4544, 4934, 5396, 6016, 6674, 7144, 9088, 9868, 10792, 13348, 14288, 19736, 21584, 26696, 28576, 39472, 43168, 46873, 53392, 57152, 63403, 78944, 86336, 93746, 106784, 114304, 115949, 126806, 157888, 172672, 175157, 187492, 213568, 231898, 253612, 315776, 350314, 374984, 427136, 463796, 507224, 700628, 749968, 927592, 1014448, 1401256, 1499936, 1855184, 2028896, 2203031, 2802512, 2999872, 3327983, 3710368, 4057792, 4406062, 5605024, 5999744, 6655966, 7420736, 8115584, 8232379, 8812124, 11210048, 13311932, 14841472, 16464758, 17624248, 22420096, 26623864, 32929516, 35248496, 53247728, 65859032, 70496992, 106495456, 131718064, 140993984, 156415201, 212990912, 263436128, 281987968, 312830402, 425981824, 526872256, 625660804, 1053744512, 1251321608, 2502643216, 5005286432, 10010572864, 20021145728]

約数ペア:

[(1, 20021145728), (2, 10010572864), (4, 5005286432), (8, 2502643216), (16, 1251321608), (19, 1053744512), (32, 625660804), (38, 526872256), (47, 425981824), (64, 312830402), (71, 281987968), (76, 263436128), (94, 212990912), (128, 156415201), (142, 140993984), (152, 131718064), (188, 106495456), (284, 70496992), (304, 65859032), (376, 53247728), (568, 35248496), (608, 32929516), (752, 26623864), (893, 22420096), (1136, 17624248), (1216, 16464758), (1349, 14841472), (1504, 13311932), (1786, 11210048), (2272, 8812124), (2432, 8232379), (2467, 8115584), (2698, 7420736), (3008, 6655966), (3337, 5999744), (3572, 5605024), (4544, 4406062), (4934, 4057792), (5396, 3710368), (6016, 3327983), (6674, 2999872), (7144, 2802512), (9088, 2203031), (9868, 2028896), (10792, 1855184), (13348, 1499936), (14288, 1401256), (19736, 1014448), (21584, 927592), (26696, 749968), (28576, 700628), (39472, 507224), (43168, 463796), (46873, 427136), (53392, 374984), (57152, 350314), (63403, 315776), (78944, 253612), (86336, 231898), (93746, 213568), (106784, 187492), (114304, 175157), (115949, 172672), (126806, 157888)]