638943232

素因数分解:

$2^{15}\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:115

約数の個数: 128

約数和(自身を含む): 1434430080

約数和(自身を除く): 795486848

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 37, 62, 64, 68, 74, 124, 128, 136, 148, 248, 256, 272, 296, 496, 512, 527, 544, 592, 629, 992, 1024, 1054, 1088, 1147, 1184, 1258, 1984, 2048, 2108, 2176, 2294, 2368, 2516, 3968, 4096, 4216, 4352, 4588, 4736, 5032, 7936, 8192, 8432, 8704, 9176, 9472, 10064, 15872, 16384, 16864, 17408, 18352, 18944, 19499, 20128, 31744, 32768, 33728, 34816, 36704, 37888, 38998, 40256, 63488, 67456, 69632, 73408, 75776, 77996, 80512, 126976, 134912, 139264, 146816, 151552, 155992, 161024, 253952, 269824, 278528, 293632, 303104, 311984, 322048, 507904, 539648, 557056, 587264, 606208, 623968, 644096, 1015808, 1079296, 1174528, 1212416, 1247936, 1288192, 2158592, 2349056, 2495872, 2576384, 4317184, 4698112, 4991744, 5152768, 8634368, 9396224, 9983488, 10305536, 17268736, 18792448, 19966976, 20611072, 37584896, 39933952, 79867904, 159735808, 319471616, 638943232]

約数ペア:

[(1, 638943232), (2, 319471616), (4, 159735808), (8, 79867904), (16, 39933952), (17, 37584896), (31, 20611072), (32, 19966976), (34, 18792448), (37, 17268736), (62, 10305536), (64, 9983488), (68, 9396224), (74, 8634368), (124, 5152768), (128, 4991744), (136, 4698112), (148, 4317184), (248, 2576384), (256, 2495872), (272, 2349056), (296, 2158592), (496, 1288192), (512, 1247936), (527, 1212416), (544, 1174528), (592, 1079296), (629, 1015808), (992, 644096), (1024, 623968), (1054, 606208), (1088, 587264), (1147, 557056), (1184, 539648), (1258, 507904), (1984, 322048), (2048, 311984), (2108, 303104), (2176, 293632), (2294, 278528), (2368, 269824), (2516, 253952), (3968, 161024), (4096, 155992), (4216, 151552), (4352, 146816), (4588, 139264), (4736, 134912), (5032, 126976), (7936, 80512), (8192, 77996), (8432, 75776), (8704, 73408), (9176, 69632), (9472, 67456), (10064, 63488), (15872, 40256), (16384, 38998), (16864, 37888), (17408, 36704), (18352, 34816), (18944, 33728), (19499, 32768), (20128, 31744)]