638271648

素因数分解:

$2^5\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1459}}^1$

素因数の和:1520

約数の個数: 216

約数和(自身を含む): 2181029760

約数和(自身を除く): 1542758112

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 31, 32, 36, 42, 48, 49, 56, 62, 63, 72, 84, 93, 96, 98, 112, 124, 126, 144, 147, 168, 186, 196, 217, 224, 248, 252, 279, 288, 294, 336, 372, 392, 434, 441, 496, 504, 558, 588, 651, 672, 744, 784, 868, 882, 992, 1008, 1116, 1176, 1302, 1459, 1488, 1519, 1568, 1736, 1764, 1953, 2016, 2232, 2352, 2604, 2918, 2976, 3038, 3472, 3528, 3906, 4377, 4464, 4557, 4704, 5208, 5836, 6076, 6944, 7056, 7812, 8754, 8928, 9114, 10213, 10416, 11672, 12152, 13131, 13671, 14112, 15624, 17508, 18228, 20426, 20832, 23344, 24304, 26262, 27342, 30639, 31248, 35016, 36456, 40852, 45229, 46688, 48608, 52524, 54684, 61278, 62496, 70032, 71491, 72912, 81704, 90458, 91917, 105048, 109368, 122556, 135687, 140064, 142982, 145824, 163408, 180916, 183834, 210096, 214473, 218736, 245112, 271374, 285964, 316603, 326816, 361832, 367668, 407061, 420192, 428946, 437472, 490224, 542748, 571928, 633206, 643419, 723664, 735336, 814122, 857892, 949809, 980448, 1085496, 1143856, 1266412, 1286838, 1447328, 1470672, 1628244, 1715784, 1899618, 2170992, 2216221, 2287712, 2532824, 2573676, 2849427, 2941344, 3256488, 3431568, 3799236, 4341984, 4432442, 5065648, 5147352, 5698854, 6512976, 6648663, 6863136, 7598472, 8864884, 10131296, 10294704, 11397708, 13025952, 13297326, 15196944, 17729768, 19945989, 20589408, 22795416, 26594652, 30393888, 35459536, 39891978, 45590832, 53189304, 70919072, 79783956, 91181664, 106378608, 159567912, 212757216, 319135824, 638271648]

約数ペア:

[(1, 638271648), (2, 319135824), (3, 212757216), (4, 159567912), (6, 106378608), (7, 91181664), (8, 79783956), (9, 70919072), (12, 53189304), (14, 45590832), (16, 39891978), (18, 35459536), (21, 30393888), (24, 26594652), (28, 22795416), (31, 20589408), (32, 19945989), (36, 17729768), (42, 15196944), (48, 13297326), (49, 13025952), (56, 11397708), (62, 10294704), (63, 10131296), (72, 8864884), (84, 7598472), (93, 6863136), (96, 6648663), (98, 6512976), (112, 5698854), (124, 5147352), (126, 5065648), (144, 4432442), (147, 4341984), (168, 3799236), (186, 3431568), (196, 3256488), (217, 2941344), (224, 2849427), (248, 2573676), (252, 2532824), (279, 2287712), (288, 2216221), (294, 2170992), (336, 1899618), (372, 1715784), (392, 1628244), (434, 1470672), (441, 1447328), (496, 1286838), (504, 1266412), (558, 1143856), (588, 1085496), (651, 980448), (672, 949809), (744, 857892), (784, 814122), (868, 735336), (882, 723664), (992, 643419), (1008, 633206), (1116, 571928), (1176, 542748), (1302, 490224), (1459, 437472), (1488, 428946), (1519, 420192), (1568, 407061), (1736, 367668), (1764, 361832), (1953, 326816), (2016, 316603), (2232, 285964), (2352, 271374), (2604, 245112), (2918, 218736), (2976, 214473), (3038, 210096), (3472, 183834), (3528, 180916), (3906, 163408), (4377, 145824), (4464, 142982), (4557, 140064), (4704, 135687), (5208, 122556), (5836, 109368), (6076, 105048), (6944, 91917), (7056, 90458), (7812, 81704), (8754, 72912), (8928, 71491), (9114, 70032), (10213, 62496), (10416, 61278), (11672, 54684), (12152, 52524), (13131, 48608), (13671, 46688), (14112, 45229), (15624, 40852), (17508, 36456), (18228, 35016), (20426, 31248), (20832, 30639), (23344, 27342), (24304, 26262)]