71806980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:238

約数の個数: 192

約数和(自身を含む): 248209920

約数和(自身を除く): 176402940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 89, 102, 105, 113, 119, 140, 170, 178, 204, 210, 226, 238, 255, 267, 339, 340, 356, 357, 420, 445, 452, 476, 510, 534, 565, 595, 623, 678, 714, 791, 890, 1020, 1068, 1130, 1190, 1246, 1335, 1356, 1428, 1513, 1582, 1695, 1780, 1785, 1869, 1921, 2260, 2373, 2380, 2492, 2670, 3026, 3115, 3164, 3390, 3570, 3738, 3842, 3955, 4539, 4746, 5340, 5763, 6052, 6230, 6780, 7140, 7476, 7565, 7684, 7910, 9078, 9345, 9492, 9605, 10057, 10591, 11526, 11865, 12460, 13447, 15130, 15820, 18156, 18690, 19210, 20114, 21182, 22695, 23052, 23730, 26894, 28815, 30171, 30260, 31773, 37380, 38420, 40228, 40341, 42364, 45390, 47460, 50285, 52955, 53788, 57630, 60342, 63546, 67235, 70399, 80682, 90780, 100570, 105910, 115260, 120684, 127092, 134470, 140798, 150855, 158865, 161364, 170969, 201140, 201705, 211197, 211820, 268940, 281596, 301710, 317730, 341938, 351995, 403410, 422394, 512907, 603420, 635460, 683876, 703990, 806820, 844788, 854845, 1025814, 1055985, 1196783, 1407980, 1709690, 2051628, 2111970, 2393566, 2564535, 3419380, 3590349, 4223940, 4787132, 5129070, 5983915, 7180698, 10258140, 11967830, 14361396, 17951745, 23935660, 35903490, 71806980]

約数ペア:

[(1, 71806980), (2, 35903490), (3, 23935660), (4, 17951745), (5, 14361396), (6, 11967830), (7, 10258140), (10, 7180698), (12, 5983915), (14, 5129070), (15, 4787132), (17, 4223940), (20, 3590349), (21, 3419380), (28, 2564535), (30, 2393566), (34, 2111970), (35, 2051628), (42, 1709690), (51, 1407980), (60, 1196783), (68, 1055985), (70, 1025814), (84, 854845), (85, 844788), (89, 806820), (102, 703990), (105, 683876), (113, 635460), (119, 603420), (140, 512907), (170, 422394), (178, 403410), (204, 351995), (210, 341938), (226, 317730), (238, 301710), (255, 281596), (267, 268940), (339, 211820), (340, 211197), (356, 201705), (357, 201140), (420, 170969), (445, 161364), (452, 158865), (476, 150855), (510, 140798), (534, 134470), (565, 127092), (595, 120684), (623, 115260), (678, 105910), (714, 100570), (791, 90780), (890, 80682), (1020, 70399), (1068, 67235), (1130, 63546), (1190, 60342), (1246, 57630), (1335, 53788), (1356, 52955), (1428, 50285), (1513, 47460), (1582, 45390), (1695, 42364), (1780, 40341), (1785, 40228), (1869, 38420), (1921, 37380), (2260, 31773), (2373, 30260), (2380, 30171), (2492, 28815), (2670, 26894), (3026, 23730), (3115, 23052), (3164, 22695), (3390, 21182), (3570, 20114), (3738, 19210), (3842, 18690), (3955, 18156), (4539, 15820), (4746, 15130), (5340, 13447), (5763, 12460), (6052, 11865), (6230, 11526), (6780, 10591), (7140, 10057), (7476, 9605), (7565, 9492), (7684, 9345), (7910, 9078)]