19490816

素因数分解:

$2^{11}\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 40360320

約数和(自身を除く): 20869504

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 307, 496, 512, 614, 992, 1024, 1228, 1984, 2048, 2456, 3968, 4912, 7936, 9517, 9824, 15872, 19034, 19648, 31744, 38068, 39296, 63488, 76136, 78592, 152272, 157184, 304544, 314368, 609088, 628736, 1218176, 2436352, 4872704, 9745408, 19490816]

約数ペア:

[(1, 19490816), (2, 9745408), (4, 4872704), (8, 2436352), (16, 1218176), (31, 628736), (32, 609088), (62, 314368), (64, 304544), (124, 157184), (128, 152272), (248, 78592), (256, 76136), (307, 63488), (496, 39296), (512, 38068), (614, 31744), (992, 19648), (1024, 19034), (1228, 15872), (1984, 9824), (2048, 9517), (2456, 7936), (3968, 4912)]