20739521792

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{6421}}^1$

素因数の和:6516

約数の個数: 144

約数和(自身を含む): 47885720064

約数和(自身を除く): 27146198272

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 37, 44, 62, 64, 74, 88, 124, 128, 148, 176, 248, 256, 296, 341, 352, 407, 496, 592, 682, 704, 814, 992, 1147, 1184, 1364, 1408, 1628, 1984, 2294, 2368, 2728, 2816, 3256, 3968, 4588, 4736, 5456, 6421, 6512, 7936, 9176, 9472, 10912, 12617, 12842, 13024, 18352, 21824, 25234, 25684, 26048, 36704, 43648, 50468, 51368, 52096, 70631, 73408, 87296, 100936, 102736, 104192, 141262, 146816, 199051, 201872, 205472, 237577, 282524, 293632, 398102, 403744, 410944, 475154, 565048, 796204, 807488, 821888, 950308, 1130096, 1592408, 1614976, 1643776, 1900616, 2189561, 2260192, 2613347, 3184816, 3229952, 3801232, 4379122, 4520384, 5226694, 6369632, 7364887, 7602464, 8758244, 9040768, 10453388, 12739264, 14729774, 15204928, 17516488, 18081536, 20906776, 25478528, 29459548, 30409856, 35032976, 41813552, 50957056, 58919096, 60819712, 70065952, 81013757, 83627104, 117838192, 140131904, 162027514, 167254208, 235676384, 280263808, 324055028, 334508416, 471352768, 560527616, 648110056, 669016832, 942705536, 1296220112, 1885411072, 2592440224, 5184880448, 10369760896, 20739521792]

約数ペア:

[(1, 20739521792), (2, 10369760896), (4, 5184880448), (8, 2592440224), (11, 1885411072), (16, 1296220112), (22, 942705536), (31, 669016832), (32, 648110056), (37, 560527616), (44, 471352768), (62, 334508416), (64, 324055028), (74, 280263808), (88, 235676384), (124, 167254208), (128, 162027514), (148, 140131904), (176, 117838192), (248, 83627104), (256, 81013757), (296, 70065952), (341, 60819712), (352, 58919096), (407, 50957056), (496, 41813552), (592, 35032976), (682, 30409856), (704, 29459548), (814, 25478528), (992, 20906776), (1147, 18081536), (1184, 17516488), (1364, 15204928), (1408, 14729774), (1628, 12739264), (1984, 10453388), (2294, 9040768), (2368, 8758244), (2728, 7602464), (2816, 7364887), (3256, 6369632), (3968, 5226694), (4588, 4520384), (4736, 4379122), (5456, 3801232), (6421, 3229952), (6512, 3184816), (7936, 2613347), (9176, 2260192), (9472, 2189561), (10912, 1900616), (12617, 1643776), (12842, 1614976), (13024, 1592408), (18352, 1130096), (21824, 950308), (25234, 821888), (25684, 807488), (26048, 796204), (36704, 565048), (43648, 475154), (50468, 410944), (51368, 403744), (52096, 398102), (70631, 293632), (73408, 282524), (87296, 237577), (100936, 205472), (102736, 201872), (104192, 199051), (141262, 146816)]