28658000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:142

約数の個数: 160

約数和(自身を含む): 83566080

約数和(自身を除く): 54908080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 80, 89, 92, 100, 112, 115, 125, 140, 161, 175, 178, 184, 200, 230, 250, 280, 322, 350, 356, 368, 400, 445, 460, 500, 560, 575, 623, 644, 700, 712, 805, 875, 890, 920, 1000, 1150, 1246, 1288, 1400, 1424, 1610, 1750, 1780, 1840, 2000, 2047, 2225, 2300, 2492, 2576, 2800, 2875, 3115, 3220, 3500, 3560, 4025, 4094, 4450, 4600, 4984, 5750, 6230, 6440, 7000, 7120, 8050, 8188, 8900, 9200, 9968, 10235, 11125, 11500, 12460, 12880, 14000, 14329, 15575, 16100, 16376, 17800, 20125, 20470, 22250, 23000, 24920, 28658, 31150, 32200, 32752, 35600, 40250, 40940, 44500, 46000, 49840, 51175, 57316, 62300, 64400, 71645, 77875, 80500, 81880, 89000, 102350, 114632, 124600, 143290, 155750, 161000, 163760, 178000, 204700, 229264, 249200, 255875, 286580, 311500, 322000, 358225, 409400, 511750, 573160, 623000, 716450, 818800, 1023500, 1146320, 1246000, 1432900, 1791125, 2047000, 2865800, 3582250, 4094000, 5731600, 7164500, 14329000, 28658000]

約数ペア:

[(1, 28658000), (2, 14329000), (4, 7164500), (5, 5731600), (7, 4094000), (8, 3582250), (10, 2865800), (14, 2047000), (16, 1791125), (20, 1432900), (23, 1246000), (25, 1146320), (28, 1023500), (35, 818800), (40, 716450), (46, 623000), (50, 573160), (56, 511750), (70, 409400), (80, 358225), (89, 322000), (92, 311500), (100, 286580), (112, 255875), (115, 249200), (125, 229264), (140, 204700), (161, 178000), (175, 163760), (178, 161000), (184, 155750), (200, 143290), (230, 124600), (250, 114632), (280, 102350), (322, 89000), (350, 81880), (356, 80500), (368, 77875), (400, 71645), (445, 64400), (460, 62300), (500, 57316), (560, 51175), (575, 49840), (623, 46000), (644, 44500), (700, 40940), (712, 40250), (805, 35600), (875, 32752), (890, 32200), (920, 31150), (1000, 28658), (1150, 24920), (1246, 23000), (1288, 22250), (1400, 20470), (1424, 20125), (1610, 17800), (1750, 16376), (1780, 16100), (1840, 15575), (2000, 14329), (2047, 14000), (2225, 12880), (2300, 12460), (2492, 11500), (2576, 11125), (2800, 10235), (2875, 9968), (3115, 9200), (3220, 8900), (3500, 8188), (3560, 8050), (4025, 7120), (4094, 7000), (4450, 6440), (4600, 6230), (4984, 5750)]