81980460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{367}}^1$

素因数の和:472

約数の個数: 144

約数和(自身を含む): 267636096

約数和(自身を除く): 185655636

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 73, 85, 90, 102, 146, 153, 170, 180, 204, 219, 255, 292, 306, 340, 365, 367, 438, 510, 612, 657, 730, 734, 765, 876, 1020, 1095, 1101, 1241, 1314, 1460, 1468, 1530, 1835, 2190, 2202, 2482, 2628, 3060, 3285, 3303, 3670, 3723, 4380, 4404, 4964, 5505, 6205, 6239, 6570, 6606, 7340, 7446, 11010, 11169, 12410, 12478, 13140, 13212, 14892, 16515, 18615, 18717, 22020, 22338, 24820, 24956, 26791, 31195, 33030, 37230, 37434, 44676, 53582, 55845, 56151, 62390, 66060, 74460, 74868, 80373, 93585, 107164, 111690, 112302, 124780, 133955, 160746, 187170, 223380, 224604, 241119, 267910, 280755, 321492, 374340, 401865, 455447, 482238, 535820, 561510, 803730, 910894, 964476, 1123020, 1205595, 1366341, 1607460, 1821788, 2277235, 2411190, 2732682, 4099023, 4554470, 4822380, 5465364, 6831705, 8198046, 9108940, 13663410, 16396092, 20495115, 27326820, 40990230, 81980460]

約数ペア:

[(1, 81980460), (2, 40990230), (3, 27326820), (4, 20495115), (5, 16396092), (6, 13663410), (9, 9108940), (10, 8198046), (12, 6831705), (15, 5465364), (17, 4822380), (18, 4554470), (20, 4099023), (30, 2732682), (34, 2411190), (36, 2277235), (45, 1821788), (51, 1607460), (60, 1366341), (68, 1205595), (73, 1123020), (85, 964476), (90, 910894), (102, 803730), (146, 561510), (153, 535820), (170, 482238), (180, 455447), (204, 401865), (219, 374340), (255, 321492), (292, 280755), (306, 267910), (340, 241119), (365, 224604), (367, 223380), (438, 187170), (510, 160746), (612, 133955), (657, 124780), (730, 112302), (734, 111690), (765, 107164), (876, 93585), (1020, 80373), (1095, 74868), (1101, 74460), (1241, 66060), (1314, 62390), (1460, 56151), (1468, 55845), (1530, 53582), (1835, 44676), (2190, 37434), (2202, 37230), (2482, 33030), (2628, 31195), (3060, 26791), (3285, 24956), (3303, 24820), (3670, 22338), (3723, 22020), (4380, 18717), (4404, 18615), (4964, 16515), (5505, 14892), (6205, 13212), (6239, 13140), (6570, 12478), (6606, 12410), (7340, 11169), (7446, 11010)]