19913471488

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{5527}}^1$

素因数の和:5803

約数の個数: 80

約数和(自身を含む): 41259930624

約数和(自身を除く): 21346459136

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 227, 248, 256, 454, 496, 512, 908, 992, 1816, 1984, 3632, 3968, 5527, 7037, 7264, 7936, 11054, 14074, 14528, 15872, 22108, 28148, 29056, 44216, 56296, 58112, 88432, 112592, 116224, 171337, 176864, 225184, 342674, 353728, 450368, 685348, 707456, 900736, 1254629, 1370696, 1414912, 1801472, 2509258, 2741392, 2829824, 3602944, 5018516, 5482784, 10037032, 10965568, 20074064, 21931136, 38893499, 40148128, 43862272, 77786998, 80296256, 87724544, 155573996, 160592512, 311147992, 321185024, 622295984, 642370048, 1244591968, 2489183936, 4978367872, 9956735744, 19913471488]

約数ペア:

[(1, 19913471488), (2, 9956735744), (4, 4978367872), (8, 2489183936), (16, 1244591968), (31, 642370048), (32, 622295984), (62, 321185024), (64, 311147992), (124, 160592512), (128, 155573996), (227, 87724544), (248, 80296256), (256, 77786998), (454, 43862272), (496, 40148128), (512, 38893499), (908, 21931136), (992, 20074064), (1816, 10965568), (1984, 10037032), (3632, 5482784), (3968, 5018516), (5527, 3602944), (7037, 2829824), (7264, 2741392), (7936, 2509258), (11054, 1801472), (14074, 1414912), (14528, 1370696), (15872, 1254629), (22108, 900736), (28148, 707456), (29056, 685348), (44216, 450368), (56296, 353728), (58112, 342674), (88432, 225184), (112592, 176864), (116224, 171337)]