15680.0000000

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 17640000

約数和(自身を除く): 10054136

約数列:

[1, 2, 4, 8, 11, 13, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 209, 247, 286, 349, 418, 494, 572, 698, 836, 988, 1144, 1396, 1672, 1976, 2717, 2792, 3839, 4537, 5434, 6631, 7678, 9074, 10868, 13262, 15356, 18148, 21736, 26524, 30712, 36296, 49907, 53048, 72941, 86203, 99814, 145882, 172406, 199628, 291764, 344812, 399256, 583528, 689624, 948233, 1896466, 3792932, 7585864]

約数ペア:

[(1, 7585864), (2, 3792932), (4, 1896466), (8, 948233), (11, 689624), (13, 583528), (19, 399256), (22, 344812), (26, 291764), (38, 199628), (44, 172406), (52, 145882), (76, 99814), (88, 86203), (104, 72941), (143, 53048), (152, 49907), (209, 36296), (247, 30712), (286, 26524), (349, 21736), (418, 18148), (494, 15356), (572, 13262), (698, 10868), (836, 9074), (988, 7678), (1144, 6631), (1396, 5434), (1672, 4537), (1976, 3839), (2717, 2792)]