79640280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1993}}^1$

素因数の和:2050

約数の個数: 128

約数和(自身を含む): 272779200

約数和(自身を除く): 193138920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 72, 74, 90, 108, 111, 120, 135, 148, 180, 185, 216, 222, 270, 296, 333, 360, 370, 444, 540, 555, 666, 740, 888, 999, 1080, 1110, 1332, 1480, 1665, 1993, 1998, 2220, 2664, 3330, 3986, 3996, 4440, 4995, 5979, 6660, 7972, 7992, 9965, 9990, 11958, 13320, 15944, 17937, 19930, 19980, 23916, 29895, 35874, 39860, 39960, 47832, 53811, 59790, 71748, 73741, 79720, 89685, 107622, 119580, 143496, 147482, 179370, 215244, 221223, 239160, 269055, 294964, 358740, 368705, 430488, 442446, 538110, 589928, 663669, 717480, 737410, 884892, 1076220, 1106115, 1327338, 1474820, 1769784, 1991007, 2152440, 2212230, 2654676, 2949640, 3318345, 3982014, 4424460, 5309352, 6636690, 7964028, 8848920, 9955035, 13273380, 15928056, 19910070, 26546760, 39820140, 79640280]

約数ペア:

[(1, 79640280), (2, 39820140), (3, 26546760), (4, 19910070), (5, 15928056), (6, 13273380), (8, 9955035), (9, 8848920), (10, 7964028), (12, 6636690), (15, 5309352), (18, 4424460), (20, 3982014), (24, 3318345), (27, 2949640), (30, 2654676), (36, 2212230), (37, 2152440), (40, 1991007), (45, 1769784), (54, 1474820), (60, 1327338), (72, 1106115), (74, 1076220), (90, 884892), (108, 737410), (111, 717480), (120, 663669), (135, 589928), (148, 538110), (180, 442446), (185, 430488), (216, 368705), (222, 358740), (270, 294964), (296, 269055), (333, 239160), (360, 221223), (370, 215244), (444, 179370), (540, 147482), (555, 143496), (666, 119580), (740, 107622), (888, 89685), (999, 79720), (1080, 73741), (1110, 71748), (1332, 59790), (1480, 53811), (1665, 47832), (1993, 39960), (1998, 39860), (2220, 35874), (2664, 29895), (3330, 23916), (3986, 19980), (3996, 19930), (4440, 17937), (4995, 15944), (5979, 13320), (6660, 11958), (7972, 9990), (7992, 9965)]