21696080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:133

約数の個数: 160

約数和(自身を含む): 63638784

約数和(自身を除く): 41942704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 43, 53, 56, 68, 70, 80, 85, 86, 106, 112, 119, 136, 140, 170, 172, 212, 215, 238, 265, 272, 280, 301, 340, 344, 371, 424, 430, 476, 530, 560, 595, 602, 680, 688, 731, 742, 848, 860, 901, 952, 1060, 1190, 1204, 1360, 1462, 1484, 1505, 1720, 1802, 1855, 1904, 2120, 2279, 2380, 2408, 2924, 2968, 3010, 3440, 3604, 3655, 3710, 4240, 4505, 4558, 4760, 4816, 5117, 5848, 5936, 6020, 6307, 7208, 7310, 7420, 9010, 9116, 9520, 10234, 11395, 11696, 12040, 12614, 14416, 14620, 14840, 15953, 18020, 18232, 20468, 22790, 24080, 25228, 25585, 29240, 29680, 31535, 31906, 36040, 36464, 38743, 40936, 45580, 50456, 51170, 58480, 63070, 63812, 72080, 77486, 79765, 81872, 91160, 100912, 102340, 126140, 127624, 154972, 159530, 182320, 193715, 204680, 252280, 255248, 271201, 309944, 319060, 387430, 409360, 504560, 542402, 619888, 638120, 774860, 1084804, 1276240, 1356005, 1549720, 2169608, 2712010, 3099440, 4339216, 5424020, 10848040, 21696080]

約数ペア:

[(1, 21696080), (2, 10848040), (4, 5424020), (5, 4339216), (7, 3099440), (8, 2712010), (10, 2169608), (14, 1549720), (16, 1356005), (17, 1276240), (20, 1084804), (28, 774860), (34, 638120), (35, 619888), (40, 542402), (43, 504560), (53, 409360), (56, 387430), (68, 319060), (70, 309944), (80, 271201), (85, 255248), (86, 252280), (106, 204680), (112, 193715), (119, 182320), (136, 159530), (140, 154972), (170, 127624), (172, 126140), (212, 102340), (215, 100912), (238, 91160), (265, 81872), (272, 79765), (280, 77486), (301, 72080), (340, 63812), (344, 63070), (371, 58480), (424, 51170), (430, 50456), (476, 45580), (530, 40936), (560, 38743), (595, 36464), (602, 36040), (680, 31906), (688, 31535), (731, 29680), (742, 29240), (848, 25585), (860, 25228), (901, 24080), (952, 22790), (1060, 20468), (1190, 18232), (1204, 18020), (1360, 15953), (1462, 14840), (1484, 14620), (1505, 14416), (1720, 12614), (1802, 12040), (1855, 11696), (1904, 11395), (2120, 10234), (2279, 9520), (2380, 9116), (2408, 9010), (2924, 7420), (2968, 7310), (3010, 7208), (3440, 6307), (3604, 6020), (3655, 5936), (3710, 5848), (4240, 5117), (4505, 4816), (4558, 4760)]