21012037760

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{2129}}^1\times {\mathrm{2203}}^1$

素因数の和:4358

約数の個数: 128

約数和(自身を含む): 57460924800

約数和(自身を除く): 36448887040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2129, 2203, 2240, 4258, 4406, 4480, 8516, 8812, 10645, 11015, 14903, 15421, 17032, 17624, 21290, 22030, 29806, 30842, 34064, 35248, 42580, 44060, 59612, 61684, 68128, 70496, 74515, 77105, 85160, 88120, 119224, 123368, 136256, 140992, 149030, 154210, 170320, 176240, 238448, 246736, 272512, 281984, 298060, 308420, 340640, 352480, 476896, 493472, 596120, 616840, 681280, 704960, 953792, 986944, 1192240, 1233680, 1362560, 1409920, 1907584, 1973888, 2384480, 2467360, 4690187, 4768960, 4934720, 9380374, 9537920, 9869440, 18760748, 23450935, 32831309, 37521496, 46901870, 65662618, 75042992, 93803740, 131325236, 150085984, 164156545, 187607480, 262650472, 300171968, 328313090, 375214960, 525300944, 600343936, 656626180, 750429920, 1050601888, 1313252360, 1500859840, 2101203776, 2626504720, 3001719680, 4202407552, 5253009440, 10506018880, 21012037760]

約数ペア:

[(1, 21012037760), (2, 10506018880), (4, 5253009440), (5, 4202407552), (7, 3001719680), (8, 2626504720), (10, 2101203776), (14, 1500859840), (16, 1313252360), (20, 1050601888), (28, 750429920), (32, 656626180), (35, 600343936), (40, 525300944), (56, 375214960), (64, 328313090), (70, 300171968), (80, 262650472), (112, 187607480), (128, 164156545), (140, 150085984), (160, 131325236), (224, 93803740), (280, 75042992), (320, 65662618), (448, 46901870), (560, 37521496), (640, 32831309), (896, 23450935), (1120, 18760748), (2129, 9869440), (2203, 9537920), (2240, 9380374), (4258, 4934720), (4406, 4768960), (4480, 4690187), (8516, 2467360), (8812, 2384480), (10645, 1973888), (11015, 1907584), (14903, 1409920), (15421, 1362560), (17032, 1233680), (17624, 1192240), (21290, 986944), (22030, 953792), (29806, 704960), (30842, 681280), (34064, 616840), (35248, 596120), (42580, 493472), (44060, 476896), (59612, 352480), (61684, 340640), (68128, 308420), (70496, 298060), (74515, 281984), (77105, 272512), (85160, 246736), (88120, 238448), (119224, 176240), (123368, 170320), (136256, 154210), (140992, 149030)]